Miscarriage is common; clotting disorders are not. The useful question is not whether to order every clotting lab, but whether your pattern of losses fits APS or selected thrombophilia testing.
- APS testing usually means lupus anticoagulant, anticardiolipin IgG/IgM, and anti-beta-2 glycoprotein I IgG/IgM, repeated at least 12 weeks apart.
- Blood clot test after miscarriage is most useful after recurrent pregnancy loss, a loss after 10 weeks, severe placental complications, or a personal clot history.
- Lupus anticoagulant is a functional clotting assay using tests such as dRVVT and LA-sensitive aPTT; anticoagulants can make it falsely positive or negative.
- Anticardiolipin antibodies count for APS only when IgG or IgM titres are medium/high, commonly above 40 GPL/MPL units or above the 99th percentile.
- Anti-beta-2 glycoprotein I IgG or IgM above the 99th percentile is an APS lab criterion when persistent on repeat testing after 12 weeks.
- D-dimer is not a reliable miscarriage-cause test because pregnancy, recent loss, infection, and inflammation can raise it well above 0.5 µg/mL FEU.
- Inherited thrombophilia testing is usually targeted to Factor V Leiden, prothrombin G20210A, antithrombin, protein C, and protein S in selected cases.
- MTHFR testing is overordered after miscarriage; major guidelines do not recommend it as a recurrent loss workup because it rarely changes treatment.
- Protein S falls during pregnancy and with estrogen exposure, so low results near miscarriage often need repeat testing when not pregnant.
- Treatment monitoring for confirmed obstetric APS often involves low-dose aspirin plus prophylactic LMWH, but dosing and monitoring must be clinician-led.
When miscarriage warrants a blood clot test
A blood clot test after miscarriage is usually worth discussing after recurrent pregnancy loss, a fetal loss after 10 weeks, severe placental complications, or a personal history of thrombosis. The most useful first-line workup is antiphospholipid syndrome labs, not a huge thrombophilia panel ordered the day after bleeding stops.
In clinic, I see the same painful pattern: a patient brings 14 lab results, but the 3 APS tests that matter were never repeated. If you already have reports, Kantesti AI can help organize the units, flags, and timing while you plan the next conversation with your clinician.
One early miscarriage before 10 weeks is common; estimates vary, but roughly 10% to 20% of recognized pregnancies end this way. That is why a single early loss, with no clot history and no autoimmune clues, usually does not justify a full blood clot test battery.
A different story is 2 or more losses, especially if they are consecutive, unexplained, or mixed with preeclampsia, growth restriction, or a clot in the leg or lung. For preconception context outside APS, our guide to a blood test before pregnancy covers baseline CBC, thyroid, iron, glucose, and immune clues that often sit alongside clotting questions.
Thomas Klein, MD, writing as Kantesti's Chief Medical Officer, would rather see 6 well-timed tests than 36 poorly timed ones. The practical move is to ask: does my pregnancy history meet APS criteria, and if yes, can we test when the results are interpretable?
APS labs that actually diagnose clot-related pregnancy risk
APS blood test panels should include lupus anticoagulant, anticardiolipin IgG/IgM, and anti-beta-2 glycoprotein I IgG/IgM. APS is not diagnosed by one weakly positive antibody; the laboratory abnormality must persist at least 12 weeks apart and match a clinical event.
The 2006 revised international APS criteria require one qualifying clinical event plus persistent lab positivity (Miyakis et al., 2006). For pregnancy, that can mean 3 unexplained losses before 10 weeks, 1 unexplained fetal death after 10 weeks, or delivery before 34 weeks due to severe preeclampsia or placental insufficiency.
Antiphospholipid syndrome labs are split into functional clotting assays and antibody immunoassays. If you want a deeper primer on PT, INR, aPTT, fibrinogen, and D-dimer, our coagulation test guide explains why those tests are not interchangeable.
A lupus anticoagulant test does not mean the patient has lupus, and it does not mean bleeding risk in the usual sense. In my experience, that name causes more anxiety than almost any other result on a miscarriage workup.
Kantesti's neural network reads APS reports by pairing the assay name, units, reference interval, pregnancy timing, and medication context. Our blood test biomarkers guide is useful when the same antibody appears as GPL, MPL, CU, U/mL, or a lab-specific ratio.
Why timing can make APS blood test results wrong
APS blood test results can be misleading during pregnancy, shortly after miscarriage, during infection, or while taking anticoagulants. Lupus anticoagulant testing is especially vulnerable because heparin, warfarin, and direct oral anticoagulants can distort clotting-based assays.
A single positive APS antibody during a stressful inflammatory event is not enough for diagnosis. APS criteria require persistence on repeat testing at least 12 weeks later, because transient antiphospholipid antibodies can appear after viral illness, surgery, or pregnancy tissue response.
I usually prefer testing once the immediate event has settled, often 6 to 12 weeks after miscarriage if the patient is clinically stable. That does not replace the 12-week repeat rule; it simply reduces the odds of chasing noise.
Laboratories handle heparin neutralizers differently, and some dRVVT reagents tolerate low-dose heparin better than others. If you are on treatment, read our blood thinner test guide before assuming a lupus anticoagulant result is clean.
Kantesti AI flags timing conflicts when uploaded reports show dates that are too close together, missing repeat tests, or anticoagulant-sensitive assays. For clinician-facing methodology, our medical validation standards describe how we separate pattern recognition from diagnosis.
How many miscarriages before APS testing is reasonable?
APS testing is clearly recommended after classic recurrent pregnancy loss, but clinicians differ on whether to start after 2 losses or wait for 3. As of May 15, 2026, many fertility and recurrent-loss clinics discuss APS labs after 2 unexplained miscarriages, especially when maternal age is over 35.
The ESHRE recurrent pregnancy loss guideline supports evaluation after 2 or more pregnancy losses and recommends antiphospholipid antibody screening in women with recurrent loss (ESHRE Guideline Group, 2018). Older classification language used 3 early losses, but clinical care often starts earlier because patients should not have to wait through another preventable event.
The nuance is yield. After 2 early losses, APS positivity is uncommon, but the consequence of missing true APS can be serious; after a loss beyond 10 weeks, the pre-test probability is higher.
A 34-year-old with two 6-week losses and normal embryos on testing is different from a 41-year-old with one aneuploid miscarriage. Our prenatal blood test guide explains why gestational age changes the likely cause of pregnancy complications.
In my practice, I document the exact gestational week, whether a heartbeat was seen, pathology results if available, and any placental clues. Those details change whether a blood clot test is medically sensible or just emotionally tempting.
Lupus anticoagulant: the tricky blood clot test
Lupus anticoagulant is the most technically difficult APS lab because it is not a simple antibody concentration. It is a clotting-function pattern built from screening, mixing, and phospholipid-confirmation steps, commonly using dRVVT and lupus-sensitive aPTT systems.
A positive lupus anticoagulant means phospholipid-dependent clotting reactions behave abnormally in the tube. Paradoxically, that laboratory prolongation is associated with clotting risk in the body, not ordinary bleeding.
The dRVVT screen/confirm ratio often becomes abnormal when antiphospholipid antibodies interfere with the assay. Each laboratory sets its own cutoff, commonly around a normalized ratio above 1.2, so comparing raw numbers across labs can mislead.
Mixing studies help distinguish factor deficiency from inhibitor patterns, but they are not perfect. For the deeper mechanics of aPTT, protein C, and D-dimer interpretation, see our aPTT guide.
I have seen patients told they have APS because a routine aPTT was 39 seconds when the reference range ended at 36 seconds. That is not enough; lupus anticoagulant needs a formal interpretation, ideally from a coagulation laboratory that states anticoagulant interference.
Anticardiolipin and beta-2 glycoprotein antibodies
Anticardiolipin and anti-beta-2 glycoprotein I tests are antibody immunoassays, usually reported as IgG and IgM. For APS classification, clinically meaningful results are medium/high titres, typically above 40 GPL/MPL for anticardiolipin or above the 99th percentile for either antibody group.
Low-positive anticardiolipin results are common enough that I do not panic over them in isolation. A value of 18 GPL with a cutoff of 15 GPL is not the same risk signal as 85 GPL repeated 14 weeks later.
IgG tends to be more clinically convincing than isolated weak IgM, although real patients rarely follow textbook rules. Some labs also offer IgA testing; IgA is not part of the classic APS laboratory criteria, but specialists may use it in selected seronegative-looking cases.
Autoimmune context matters. If symptoms include joint swelling, photosensitive rash, mouth ulcers, or low complement, our lupus blood test guide explains how ANA, dsDNA, C3, and C4 fit around APS rather than replace it.
Kantesti AI treats aCL and anti-beta-2GPI as trendable markers, not one-off labels. When a report includes both U/mL and percentile-based interpretation, our platform prioritizes the laboratory's own cutoff and the 12-week persistence rule.
Inherited thrombophilia tests: when they help after miscarriage
Inherited thrombophilia testing after miscarriage is selective, not routine. Factor V Leiden, prothrombin G20210A, antithrombin deficiency, protein C deficiency, and protein S deficiency may be considered when there is personal thrombosis, strong family clot history, or later pregnancy loss.
Guidelines disagree in the grey zone, but broad inherited thrombophilia panels after isolated early miscarriage often have low yield. The 2023 RCOG recurrent miscarriage guideline advises APS testing for recurrent miscarriage and is much more restrained about inherited thrombophilia, especially for first-trimester loss.
Factor V Leiden and prothrombin G20210A are DNA tests, so pregnancy and anticoagulants do not change the genotype. Protein S, protein C, and antithrombin are functional or antigen tests; pregnancy, estrogen, acute thrombosis, liver disease, and anticoagulants can all shift them.
Protein S is the trap I see most. Free protein S can fall substantially during pregnancy, so a low result near miscarriage may reflect physiology rather than inherited deficiency.
If there is a mother, sister, or prior personal history of VTE before age 50, the calculation changes. For family-pattern thinking beyond clotting, our hereditary disease blood test article shows how to document relatives, ages, and confirmed diagnoses before ordering genetics.
Thomas Klein, MD, would rather see thrombophilia testing ordered from a documented pedigree than from fear alone. The result should answer a management question: would this change pregnancy anticoagulation, contraception advice, surgery prophylaxis, or family counselling?
Clotting labs often overordered after miscarriage
The most overordered miscarriage clotting tests are MTHFR, PAI-1 polymorphisms, routine D-dimer, factor VIII, and broad platelet-function panels. These tests rarely explain recurrent early loss by themselves and often create anxiety without changing treatment.
MTHFR is the classic example. Common MTHFR variants are frequent in the general population, and major reproductive and thrombosis guidelines do not recommend MTHFR genotyping as a recurrent miscarriage explanation.
Homocysteine is a separate issue. A fasting homocysteine above about 15 µmol/L can suggest folate, B12, kidney, thyroid, or medication contributors, but it does not prove a hereditary clotting cause.
Patients sometimes arrive with PAI-1 4G/5G results and no APS repeat testing. That is backwards; if you are tracking methylation or B-vitamin clues, our homocysteine range guide gives more actionable follow-up than isolated MTHFR labels.
Platelet aggregation tests, thromboelastography, and NK-cell assays belong in specialist contexts, not routine first-line workups. When a lab bundle looks impressive but does not map to a treatment decision, I call that diagnostic clutter.
D-dimer, PT/INR, and aPTT after pregnancy loss
D-dimer, PT/INR, and aPTT can be clinically useful after miscarriage, but they are not diagnostic tests for APS-related recurrent loss. D-dimer rises with pregnancy and recent tissue healing, while PT/INR mainly reflects clotting-factor pathways and vitamin K or warfarin effects.
A D-dimer cutoff of 0.5 µg/mL FEU is commonly used in non-pregnant adults, but pregnancy can push values above that even without a dangerous clot. After miscarriage, inflammation and tissue remodeling can keep D-dimer elevated for days to weeks.
PT/INR is useful if there is heavy bleeding, liver disease, vitamin K deficiency, or warfarin exposure. For patients trying to understand INR specifically, our PT/INR range guide explains why an INR of 1.3 means something very different from an INR of 3.0.
aPTT may be prolonged in lupus anticoagulant, but a normal aPTT does not rule APS out. Many modern aPTT reagents are not sensitive enough to serve as a screening test for lupus anticoagulant.
If a report shows a D-dimer of 1.2 µg/mL FEU after a recent loss, I ask about symptoms before I ask about miscarriage causation. Chest pain, breathlessness, coughing blood, fainting, or one-sided calf swelling needs urgent evaluation, not an upload-and-wait approach.
For deeper D-dimer interpretation, including post-infection elevations, see our D-dimer guide. Kantesti AI can organize the values, but possible acute clot symptoms require real-time medical care.
What to ask before trying again
Before trying again, ask for a targeted recurrent-loss plan: APS labs, selected thrombophilia tests only if history supports them, and baseline pregnancy-health labs. The goal is to identify treatable risk without delaying conception for months of low-value testing.
A practical question list is short: which APS labs are we ordering, when will we repeat positives, and what result would change treatment? If nobody can answer the third question, the test may not belong in the first round.
I also ask for CBC, ferritin, TSH, HbA1c or fasting glucose, kidney/liver chemistry, and vitamin B12 or folate when diet or anemia suggests it. These do not replace APS labs, but they catch common modifiable problems before pregnancy.
Thyroid deserves a special mention because TSH targets can be tighter when trying to conceive. Our TSH in pregnancy guide explains why many clinicians aim for TSH below about 2.5 mIU/L in early pregnancy or preconception in selected patients.
Bring dates. A one-page timeline with each loss, gestational week, ultrasound findings, embryo testing, medications, and clot symptoms often beats a 40-page portal printout.
If you are not sure how to frame the appointment, upload your existing labs to our platform and take the organized summary to your clinician. Kantesti does not diagnose miscarriage causes, but it can reduce the usual chaos around units, dates, and missing repeats.
If APS is confirmed: treatment and monitoring labs
Confirmed obstetric APS is commonly treated in pregnancy with low-dose aspirin plus prophylactic low-molecular-weight heparin, but the regimen depends on clot history and specialist judgment. A typical aspirin dose is 75-100 mg daily, and prophylactic enoxaparin is often 40 mg once daily in average-weight adults.
The classic BMJ randomized trial by Rai et al. found higher live-birth rates with aspirin plus heparin than aspirin alone in women with recurrent miscarriage and antiphospholipid antibodies (Rai et al., 1997). Treatment has evolved since then, but the aspirin-plus-heparin backbone remains familiar in many obstetric APS clinics.
Do not start aspirin or heparin just because one antibody is weakly positive. The risk of unnecessary anticoagulation includes bruising, bleeding, allergic reactions, heparin-induced thrombocytopenia, and confusion during emergency care.
Monitoring often includes platelet count after starting heparin, kidney function for LMWH clearance, and sometimes anti-Xa levels in extremes of body weight, renal impairment, or recurrent events. Our vitamin K and INR guide explains why warfarin-related INR monitoring is a different world from LMWH safety monitoring.
For obstetric APS without prior thrombosis, some clinicians stop LMWH after delivery while others continue for 6 weeks postpartum, depending on risk. If there was a previous clot, the plan is usually more intensive and should involve haematology.
How to read borderline or one-off positive results
A borderline APS result is not the same as APS. Weak anticardiolipin positivity, a single abnormal lupus anticoagulant, or an antibody that disappears on repeat testing usually needs cautious interpretation rather than a lifelong diagnostic label.
The most useful question is whether the result is strong, persistent, and clinically matched. A low-positive anticardiolipin IgM of 22 MPL once after a viral illness does not carry the same meaning as triple positivity repeated 13 weeks apart.
Assay variability is real. One lab's weak positive can be another lab's negative because manufacturers use different calibrators, cutoffs, and phospholipid preparations.
Kantesti AI looks for unit drift, reference-range changes, and repeat intervals before describing a trend. Our article on blood test variability is helpful when two reports seem to disagree but were run on different platforms.
I tell patients not to let a borderline result become an identity. It is a clue, and clues need corroboration.
A reasonable repeat plan usually uses the same laboratory, the same antibody set, and a date at least 12 weeks later. If anticoagulants or pregnancy cannot be avoided, the report should say so clearly.
Other labs beyond clotting that can change miscarriage risk
Not every miscarriage pattern is clot-mediated, so a smart workup includes thyroid, glucose, CBC, ferritin, B12/folate, kidney/liver chemistry, and inflammation markers when symptoms fit. These tests often explain fatigue, anemia, endocrine issues, or medication safety questions that APS labs cannot answer.
TSH above 4.0 mIU/L, especially with positive TPO antibodies, often prompts preconception thyroid discussion. Hyperthyroidism, uncontrolled diabetes, and severe anemia can all affect pregnancy risk through pathways unrelated to APS.
Ferritin below 30 ng/mL is common after bleeding and can worsen exhaustion even when hemoglobin is still normal. For pregnancy-specific iron interpretation, our iron in pregnancy guide explains why ferritin, transferrin saturation, and hemoglobin should be read together.
CRP can rise after infection or tissue response, but it does not diagnose APS. If CRP is high in pregnancy or after loss, our CRP in pregnancy guide gives practical ranges and follow-up ideas.
Autoimmune screening may be reasonable when symptoms point that way. Our autoimmune panel guide explains why ANA, ENA, complements, and inflammatory markers should be ordered for symptoms, not as a fishing expedition.
How Kantesti helps organize APS and thrombophilia reports
Kantesti AI helps interpret clotting-related reports by reading the marker name, units, reference range, medication context, and date spacing. It does not replace a recurrent-loss specialist, but it can show whether the right antiphospholipid syndrome labs were ordered and repeated properly.
Our platform processes uploaded PDF or photo lab reports in about 60 seconds and supports users across 127+ countries. That matters for APS because international labs report anticardiolipin in GPL/MPL, U/mL, CU, or lab-specific qualitative bands.
Kantesti AI flags missing pairs, such as anticardiolipin ordered without anti-beta-2 glycoprotein I, or a positive antibody never repeated after 12 weeks. For upload safety and formatting, see our blood test PDF upload guide.
The tool also separates urgent patterns from non-urgent questions. A D-dimer with chest symptoms belongs in emergency care, while a borderline IgM antibody repeated too soon belongs in outpatient specialist review.
If you want to see how your current results are structured, try the free blood test analysis. Kantesti's output is designed to support clinician conversations, not to tell you to start anticoagulants on your own.
For background on our organization, clinical governance, and international build, the Kantesti About Us page explains how our medical and engineering teams work together.
Lab quality details that quietly change clotting results
Clotting tests are unusually sensitive to specimen handling, tube fill, processing delay, and anticoagulant contamination. A citrate tube that is underfilled by more than about 10% can alter clotting times enough to trigger a misleading aPTT or lupus anticoagulant screen.
Coagulation tubes rely on the correct blood-to-citrate ratio, usually 9:1. If the tube is short-filled, the plasma has relatively too much citrate, calcium binding changes, and clotting times may look falsely prolonged.
High hematocrit, often above 55%, can also require citrate adjustment because the plasma volume is lower. That detail is easy to miss unless the lab has a coagulation-aware collection protocol.
Delayed centrifugation matters for lupus anticoagulant because platelet fragments can release phospholipids and neutralize the effect being measured. Our lab error checks article explains how pre-analytical issues can mimic disease.
When a result is borderline and the collection note says difficult draw, clot in tube, hemolysis, or delayed processing, I treat the number with caution. A clean repeat can be more valuable than another exotic test.
Symptoms that need same-day care, not more screening
Some symptoms after miscarriage require urgent assessment rather than outpatient clot screening. One-sided leg swelling, sudden chest pain, shortness of breath, fainting, severe headache with neurologic symptoms, or heavy bleeding soaking pads rapidly should be treated as time-sensitive.
A blood clot test cannot safely rule out pulmonary embolism in a high-risk symptomatic patient by itself. Imaging, vital signs, oxygen level, exam findings, and clinician risk scoring are often needed.
Heavy bleeding is a different emergency pathway. A CBC, fibrinogen, PT/INR, aPTT, pregnancy hormone trend, ultrasound, and obstetric assessment may be more relevant than APS antibody testing on that day.
Patients often ask whether a normal D-dimer rules out a clot after miscarriage. The answer depends on timing, symptoms, and pre-test probability; our high D-dimer after infection article explains why context can outweigh the number.
If you feel unsafe, do not wait for an app, a portal message, or a repeat antibody result. This is one of those moments where old-fashioned urgent care still beats clever interpretation.
Research, validation, and clinician-reviewed standards
Kantesti's medical content and AI interpretation workflow are built around clinician review, validation sets, and clear boundaries between lab explanation and diagnosis. For miscarriage and APS content, our standard is simple: explain the labs precisely, flag unsafe patterns, and push treatment decisions back to qualified clinicians.
Our Medical Advisory Board reviews sensitive clinical topics, including pregnancy, clotting, and autoimmune testing. As Thomas Klein, MD, I am comfortable using AI for pattern organization, but I am not comfortable with AI telling a patient to start aspirin or heparin without a clinician.
Kantesti's validation work is documented in clinical engineering publications and benchmark pages, including our AI blood test benchmark. Related engineering validation is also available through DOI-linked research, including multilingual clinical decision support across 50,000 interpreted reports.
APA: Kantesti AI Clinical Engineering Group. (2026). Multilingual AI Assisted Clinical Decision Support for Early Hantavirus Triage: Design, Engineering Validation, and Real-World Deployment Across 50,000 Interpreted Blood Test Reports. Figshare. https://doi.org/10.6084/m9.figshare.32230290. ResearchGate: https://www.researchgate.net/search/publication?q=Multilingual%20AI%20Assisted%20Clinical%20Decision%20Support%20for%20Early%20Hantavirus%20Triage. Academia.edu: https://www.academia.edu/search?q=Multilingual%20AI%20Assisted%20Clinical%20Decision%20Support%20for%20Early%20Hantavirus%20Triage.
APA: Kantesti AI Medical Validation Group. (2026). Clinical Validation Framework v2.0 (Medical Validation Page). Zenodo. https://doi.org/10.5281/zenodo.17993721. ResearchGate: https://www.researchgate.net/search/publication?q=Clinical%20Validation%20Framework%20v2.0%20Kantesti. Academia.edu: https://www.academia.edu/search?q=Clinical%20Validation%20Framework%20v2.0%20Kantesti.
For patients, the bottom line is practical: ask for the right APS labs, repeat them at least 12 weeks apart, and avoid broad clotting panels unless the result will change care. For clinicians and partners, our AI lab interpretation workflow explains how Kantesti handles uncertainty rather than hiding it.
Frequently Asked Questions
What blood clot test should I ask for after miscarriage?
The most useful blood clot test after recurrent miscarriage is usually an APS panel: lupus anticoagulant, anticardiolipin IgG/IgM, and anti-beta-2 glycoprotein I IgG/IgM. These tests should be repeated at least 12 weeks apart if positive, because transient antibodies can appear after illness or pregnancy loss. A broad inherited thrombophilia panel is usually reserved for later losses, personal clot history, or strong family history.
Can one miscarriage be caused by antiphospholipid syndrome?
One miscarriage can occur in someone who has antiphospholipid syndrome, but one early miscarriage before 10 weeks rarely proves APS by itself. Classic APS pregnancy criteria include 3 unexplained early losses, 1 unexplained fetal death after 10 weeks, or delivery before 34 weeks because of severe placental disease. Many clinicians discuss testing after 2 unexplained losses, especially if other risk clues are present.
When should APS blood tests be repeated?
APS blood tests should be repeated at least 12 weeks after an initial positive result to meet laboratory criteria. Testing too soon can confuse temporary inflammation-related antibodies with persistent APS. If the first test was done during pregnancy, acute miscarriage care, infection, or anticoagulant treatment, your clinician may choose a cleaner repeat window.
Is D-dimer useful after miscarriage?
D-dimer is not a reliable test for explaining miscarriage because pregnancy and recent tissue healing can raise it above the usual non-pregnant cutoff of 0.5 µg/mL FEU. D-dimer can be useful in selected clot-evaluation pathways, but only when combined with symptoms and clinical risk assessment. Chest pain, breathlessness, fainting, or one-sided leg swelling needs urgent care rather than routine recurrent-loss screening.
Should I get MTHFR testing after recurrent miscarriage?
MTHFR testing is not recommended as a routine recurrent miscarriage workup because common MTHFR variants are frequent and usually do not change treatment. If there is concern about methylation or nutrition, fasting homocysteine, B12, folate, kidney function, and thyroid testing are usually more actionable. A homocysteine level above about 15 µmol/L deserves clinical review, but it does not diagnose APS.
Can APS be treated in pregnancy?
Confirmed obstetric APS is often treated with low-dose aspirin plus prophylactic low-molecular-weight heparin during pregnancy, but treatment must be individualized. Common aspirin doses are 75-100 mg daily, and prophylactic enoxaparin is often 40 mg once daily in average-weight adults. Prior thrombosis, kidney function, body weight, bleeding risk, and delivery planning can all change the regimen.
Can Kantesti diagnose APS from my blood tests?
Kantesti AI can organize APS and thrombophilia lab reports, flag missing repeat testing, compare units, and explain whether results fit common laboratory patterns. It cannot diagnose APS or prescribe aspirin, heparin, or anticoagulants. APS diagnosis requires clinical pregnancy history or thrombosis history plus persistent laboratory positivity at least 12 weeks apart, interpreted by a qualified clinician.
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📚 Referenced Research Publications
Klein, T., Mitchell, S., & Weber, H. (2026). Multilingual AI Assisted Clinical Decision Support for Early Hantavirus Triage: Design, Engineering Validation, and Real-World Deployment Across 50,000 Interpreted Blood Test Reports. Kantesti AI Medical Research.
Klein, T., Mitchell, S., & Weber, H. (2026). Clinical Validation Framework v2.0 (Medical Validation Page). Kantesti AI Medical Research.
📖 External Medical References
ESHRE Guideline Group on RPL et al. (2018). ESHRE guideline: recurrent pregnancy loss. Human Reproduction Open.
Rai R et al. (1997). Randomised controlled trial of aspirin and aspirin plus heparin in pregnant women with recurrent miscarriage associated with phospholipid antibodies. BMJ.
⚕️ Medical Disclaimer
This article is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider for diagnosis and treatment decisions.
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Physician-led clinical review of lab interpretation workflows.
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Laboratory medicine focus on how biomarkers behave in clinical context.
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Written by Dr. Thomas Klein with review by Dr. Sarah Mitchell and Prof. Dr. Hans Weber.
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Evidence-based interpretation with clear follow-up pathways to reduce alarm.