Liver Enzymes Lab Interpretation 2026 Update Patient-Friendly For most adults, AST is normal at roughly 10-40 U/L, though many labs now use a tighter upper limit near 35 U/L for some patients. A high AST does not automatically mean liver disease: exercise, muscle injury, alcohol, hemolysis, and medicines can all raise it, and the pattern […]
Dermatology Lab Interpretation 2026 Update Patient-Friendly If you are shedding more hair than usual, the most useful starting labs are ferritin with full iron studies, TSH with free T4, and 25-hydroxy vitamin D. The right panel depends on the pattern—diffuse shedding, patterned thinning, patchy loss, or hair loss with fatigue, heavy periods, acne, or menstrual […]
Pre-Op Testing Lab Interpretation 2026 Update Patient-Friendly Most surgical patients need fewer tests than they expect. The real issue is knowing which results would actually change anesthesia, bleeding risk, or timing. 📖 ~11 minutes 📅 April 1, 2026 📝 Published: April 1, 2026 🩺 Medically Reviewed: April 1, 2026 ✅ Evidence-Based This guide was written […]
Women's Hormones Lab Interpretation 2026 Update Patient-Friendly The best PCOS blood test panel is not one lab but a timed set: testosterone with SHBG, DHEAS, TSH, prolactin, glucose or HbA1c, and morning 17-hydroxyprogesterone. Most baseline hormones work best on cycle days 2-5, while progesterone is checked about 7 days after ovulation. 📖 ~11 minutes 📅 […]
Liver & Bone Marker Lab Interpretation 2026 Update Patient-Friendly For most adults, the normal range for alkaline phosphatase is about 30-120 U/L, but children, teenagers, and pregnancy can run much higher. What matters most is whether the source looks like liver, bile ducts, bone, placenta, or a rarer cause. 📖 ~11 minutes 📅 March 31, […]
Iron Storage Lab Interpretation 2026 Update Patient-Friendly The normal range for ferritin is usually 12-150 ng/mL in adult women and 30-300 ng/mL in adult men, though some labs use slightly different limits. The real trick is this: ferritin measures iron stores, but inflammation, liver stress, and infection can raise it even when usable iron is […]
Liver Enzymes Lab Interpretation 2026 Update Patient-Friendly If you’re asking what does high GGT mean, the short answer is liver or bile duct stress. By itself it often points to alcohol, fatty liver, or medicines; with ALT/AST or ALP, the pattern shifts. 📖 ~11 minutes 📅 March 30, 2026 📝 Published: March 30, 2026 🩺 […]
Hormones Lab Interpretation 2026 Update Patient-Friendly A normal total testosterone result can be misleading when SHBG is unusually high or low. This guide shows how clinicians use SHBG to estimate biologically active testosterone in men and women. 📖 ~11 minutes 📅 March 30, 2026 📝 Published: March 30, 2026 🩺 Medically Reviewed: March 30, 2026 […]
Coagulation Tests Lab Interpretation 2026 Update Patient-Friendly If you are not taking warfarin, a typical PT INR result is a prothrombin time of about 11-13.5 seconds and an INR of 0.8-1.1. Higher values mean blood is clotting more slowly — often from warfarin, liver dysfunction, vitamin K deficiency, antibiotics, or a sample issue — while […]
Hematology Lab Interpretation 2026 Update Patient-Friendly For most adults, the WBC normal range is 4.0-11.0 ×10^9/L. Higher counts usually reflect infection, inflammation, smoking, steroids, or stress; lower counts more often point to viral illness, medication effects, autoimmune disease, or bone marrow suppression. 📖 ~11 minutes 📅 March 29, 2026 📝 Published: March 29, 2026 🩺 […]