HEMATOLOGY
What are the components of blood?
What is normal fasting blood glucose?
70–99 mg/dL.
What is the usual thickness of tissue sections?
3–5 µm.
Which vein is the first choice for venipuncture?
Median cubital vein.
What is the normal specific gravity of urine?
1.005–1.030
Classify anemia according to morphology?
Which hormone lowers blood glucose?
Insulin.
Which chemical is commonly used for clearing?
Xylene.
How long should a tourniquet remain in place?
Not more than 1 minute.
What is pyuria?
Presence of pus cells (white blood cells) in urine.
What is hemolytic anemia?
Anemia caused by premature destruction of RBCs.
What is the normal serum creatinine level?
Why are tissue sections floated on warm water?
To flatten wrinkles before mounting.
What is the recommended order of draw?
What is Bence Jones protein?
A monoclonal immunoglobulin light chain found in the urine of many patients with plasma cell disorders, such as multiple myeloma.
What investigation confirms thalassemia?
Hemoglobin electrophoresis
What is Beer-Lambert's law?
Absorbance is directly proportional to concentration and path length.
Which acids are used for decalcification?
Nitric acid, hydrochloric acid, and formic acid.
What is the most important step before collecting blood?
Correct patient identification
Why is quality control important in the laboratory?
To ensure accurate, reliable, and reproducible test results.
What is INR?
International Normalized Ratio is a standardized measure of PT.
What is reference range?
The range of values expected in a healthy population.
What is Congo red stain used for?
Demonstrates amyloid deposits.
What is a hematoma?
A localized collection of blood under the skin due to leakage from the vein after venipuncture.
What is isosthenuria?
Persistent urine specific gravity around 1.010, indicating impaired renal concentrating ability.