RX Lab Test Education
A patient-friendly guide to understand why lab tests are ordered, what abnormal results may mean, and how to prepare for a safer doctor discussion.
Understand reports without panic
A single abnormal number does not always mean a dangerous disease. RX Lab Test Guide helps patients prepare better questions and understand why a clinician may repeat, compare, or combine tests before making a treatment decision.
Seek qualified urgent medical care if abnormal reports occur with severe breathing difficulty, chest pain, fainting, confusion, severe weakness, uncontrolled bleeding, black stool, very high fever, dehydration, severe allergic reaction, yellow eyes with severe illness, or rapidly worsening symptoms.
Open Care Decision GuideCommon tests: Hemoglobin, hematocrit, RBC, WBC, neutrophils, lymphocytes, eosinophils, platelets, MCV, MCH, RDW
Helps screen for anemia, infection patterns, inflammation, bleeding risk, bone marrow disorders, and many systemic illnesses.
Common tests: ESR, CRP, procalcitonin, blood culture, urine culture, throat swab, wound culture
Helps doctors judge whether inflammation or infection may be active and whether further testing or urgent care is needed.
Common tests: Creatinine, urea/BUN, eGFR, sodium, potassium, chloride, bicarbonate, calcium, magnesium, phosphate
Checks fluid balance, kidney function, dehydration risk, medication safety, and causes of weakness, confusion, cramps, or heart rhythm problems.
Common tests: ALT, AST, ALP, GGT, bilirubin, albumin, PT/INR, amylase, lipase
Helps evaluate liver injury, bile duct disease, jaundice, nutrition status, clotting safety, and possible pancreatic disease.
Common tests: Fasting glucose, random glucose, HbA1c, lipid profile, uric acid, thyroid profile, vitamin B12, folate, vitamin D
Supports prevention and diagnosis of diabetes, cholesterol problems, gout risk, thyroid disease, and important nutritional deficiencies.
Common tests: ANA, RF, anti-CCP, ENA profile, anti-dsDNA, complement C3/C4, HLA-B27, ANCA
Used with symptoms and examination to support or exclude autoimmune, connective tissue, inflammatory joint, and vasculitis conditions.
Before testing
Patients should ask whether fasting is needed, which medicines should be continued, whether pregnancy or kidney disease changes the test plan, and when results should be reviewed.
