How to Read Blood Diagnostics

When you see a doctor for a checkup, he may ask for blood tests for evaluation. Many different tests can be done on blood samples to evaluate your health and fitness. Tests from blood samples can show cell count, liver function and cholesterol levels. The amount of numbers and results shown in a blood lab test can be intimidating, but they help you know where improvement in diet or exercise is needed.

Instructions

• 1

  Evaluate CBC results. CBC results are the total blood cell count in the sample. Your blood contains white blood cells, red blood cells and platelets. These results can be further divided into counts of each, individual type. Abnormally high results can mean disease such as lymphoma, while low counts can mean immunity disorders like HIV infection. Normal numbers are variable depending on age, gender and current medications.

• 2

  Evaluate cholesterol levels. Cholesterol levels are important for people who are at risk for cardiovascular disease. Poor results signify a need for a change in diet. Normal cholesterol levels are 150-250 mg/dl.

• 3

  Evaluate platelet counts. Platelets are important for blood clotting. These blood cells are important for trauma incidences. Without platelets, the body would bleed to death. Normal platelet values for a healthy individual are 150,000-350,000.

• 4

  Evaluate amylase values. Amylase is an enzyme that breaks down sugars in the saliva and the intestines. Abnormal levels of amylase can signify pancreatitis. Normal levels are 25-125 milliunits/ml.

• 5

  Evaluate kidney function. BUN (Blood Urea Nitrogen) and creatinine levels in blood samples help doctors predict kidney failure. Chronic kidney failure can be asymptomatic, so BUN and creatinine levels can leave warnings about malfunctioning kidneys. Normal values for BUN levels are 10-20 mg/dl, and normal creatinine levels are 0.6-1.2 mg/dl.