LAFIA Learn
Your lab results, explained.
Clear, specialist-written guides to what each value on your lab report actually means — high, low, normal, and when to worry. Written by a medical laboratory scientist with 40 years in clinical diagnostics.
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Getting started
Lab Report Guide
Lab results can feel overwhelming. This plain-language guide explains what the numbers mean, what's normal, and when to follow up with your doctor.
8 min read -
Thyroid
TSH (Thyroid-Stimulating Hormone)
What your TSH result means in plain language — normal ranges by age, what high or low TSH indicates, and when to actually worry. By a lab scientist.
6 min read -
Vitamins
Vitamin D (25-Hydroxyvitamin D)
What your vitamin D (25-OH) result means in plain language — deficiency thresholds, what low levels cause, and how much to take. By a lab scientist.
6 min read -
Diabetes
HbA1c (Glycated Hemoglobin)
What your HbA1c result means in plain language — normal, prediabetes and diabetes thresholds, and what to do next. Written by a lab scientist.
6 min read -
Kidney
Creatinine
What your creatinine result means in plain language — what high or low levels say about your kidneys, and when to worry. By a lab scientist.
6 min read -
Kidney
eGFR (Estimated Glomerular Filtration Rate)
What your eGFR result means in plain language — what a low number says about kidney function, the stages, and when to worry. By a lab scientist.
6 min read -
Iron Studies
Ferritin
What your ferritin result means in plain language — normal ranges, what high or low ferritin indicates about your iron stores, and when to actually worry.
5 min read -
Heart Health
Lipid Panel (Cholesterol)
What your cholesterol results mean in plain language — normal ranges for LDL, HDL, and triglycerides, and how they impact your heart health.
6 min read -
Liver Function
ALT and AST (Liver Enzymes)
What your ALT and AST liver enzyme results mean in plain language — normal ranges, what high levels indicate about liver health, and when to worry.
5 min read -
General Health
Complete Blood Count (CBC)
What your CBC test results mean in plain language — understanding your red blood cells, white blood cells, platelets, and hemoglobin levels.
6 min read -
Kidney & Joints
Uric Acid
What your uric acid test result means in plain language — normal ranges, what high uric acid indicates, its link to gout, and when to worry.
4 min read -
Electrolytes
Potassium
What your potassium result means in plain language — normal ranges, what high or low potassium indicates, and why it's critical for your heart.
4 min read -
Electrolytes
Sodium
What your sodium result means in plain language — normal ranges, what high or low sodium indicates, and its connection to hydration.
4 min read -
Metabolic
Calcium
What your calcium result means in plain language — normal ranges, what high or low calcium indicates, and its link to bone health and hormones.
4 min read -
Electrolytes
Magnesium
What your magnesium result means in plain language — normal ranges, what high or low magnesium indicates, and its role in muscle and nerve function.
4 min read -
Liver
AST (Aspartate Aminotransferase)
What your AST result means in plain language — normal ranges, what high AST indicates, and why it is tested alongside ALT to check liver health.
4 min read -
Kidney
BUN (Blood Urea Nitrogen)
What your BUN result means in plain language — normal ranges, what high or low BUN indicates, and how it measures kidney function and hydration.
4 min read -
Liver & Nutrition
Albumin
What your albumin result means in plain language — normal ranges, what high or low albumin indicates, and its role in liver function and nutrition.
4 min read -
Liver
Bilirubin (Total)
What your bilirubin result means in plain language — normal ranges, what high bilirubin indicates, and its connection to jaundice and liver health.
4 min read -
Liver & Bone
Alkaline Phosphatase (ALP)
What your ALP result means in plain language — normal ranges, what high ALP indicates, and its connection to liver, bile ducts, and bone health.
4 min read -
Heart & Lipids
Triglycerides
What your triglycerides result means in plain language — normal ranges, what high triglycerides indicate, and how diet affects this fat in your blood.
4 min read
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