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WorksheetsQUIZ FASTING BLOOD SUGAR IN CHEMICAL PATHOLOGY
Total questions: 20
Worksheet time: 10mins
1. What is the normal reference range for fasting blood glucose in adults?
A. 5 – 6 mmol/L
B. 4 – 6mmol/L
C. 5 – 7 mmol/L
D. 4 – 5 mmol/L
2. In the laboratory, glycolysis can be inhibited in collected blood samples by using:
A. EDTA
B. Heparin
C. Sodium fluoride
D. Sodium citrate
3. In chemical pathology, which anticoagulant and preservative is commonly used in glucose estimation tubes?
A. EDTA and sodium fluoride
B. Heparin and potassium oxalate
C. Sodium fluoride and potassium oxalate
D. Citrate and sodium chloride
4. Which of the following is a valid reason to reject a fasting blood sugar sample?
A. Blood collected after 8 hours of fasting
B. Blood collected in a fluoride oxalate tube
C. Hemolyzed blood sample
D. Sample labeled correctly with patient details
5. 1. What is the ideal duration of fasting required before collecting blood for a fasting blood sugar test?
A. 2–4 hours
B. 6–8 hours
C. 8–12 hours
D. 12–16 hours
6. A fasting blood sugar test sample may be rejected if it is collected in which of the following tubes?
A. Sodium fluoride tube
B. EDTA tube
C. Fluoride oxalate tube
D. Gray-top tube
7. Why is proper labeling important for FBS samples?
A. It helps improve glucose levels
B. It reduces the test cost
C. It ensures accurate patient identification
D. It prevents hemolysis
8. What is the purpose of inverting the blood collection tube after drawing blood?
A. To mix the blood with clot activator
B. To prevent hemolysis
C. To prevent clotting by mixing with anticoagulant
D. To separate plasma from cells immediately
9. How many times should the gray top tube be inverted after blood collection for FBS testing?
A. 3 times
B. 8–10 times
C. 5-7 times
D. Not inverted at all
10. What is the correct order of draw when collecting blood for fasting blood sugar (FBS)?
A. Sodium Citrate→ EDTA→ Sodium Fluoride
B. EDTA→ Plain Tube → Sodium Fluoride
C. Lithium→ Sodium Citrate → Sodium Fluoride
D. Plain Tube → Sodium Citrate → Sodium Fluoride
11. In which color-coded tube is the sample for FBS typically collected?
A. Red top
B. Gray top
C. Lavender top
D. Green top
12.What is the purpose of following the correct order of draw?
A. To reduce the cost of testing
B. To minimize sample volume
C. To prevent cross-contamination of additives between tubes
D. To make collection faster
13. What is the function of sodium fluoride in the FBS tube?
A. Coagulates blood
B. Prevents hemolysis
C. Inhibits glycolysis
D. Enhances clot formation
14. Which type of specimen is typically used for fasting blood sugar analysis in the laboratory?
A. Whole blood
B. Serum
C. Plasma
D. Either serum or plasma
15. What is the first step a laboratory technician should perform upon receiving a sample for fasting blood sugar?
A. Store the sample immediately in the refrigerator
B. Check the patient’s glucose history
C. Verify patient identification and labeling
D. Perform the glucose test immediately
16.Which of the following is NOT a reason to reject a blood sample for FBS?
A. Sample is clotted in an anticoagulant tube
B. Sample is lipemic
C. Sample was kept at room temperature for 3 hours
D. Sample collected from a fasting patient in a gray-top tube
17. A fasting blood sugar test is recommended for individuals who:
A. Eat a lot of fruits
B. Exercise daily without any complaints
C. Have a family history of diabetes
D. Have high calcium levels
18. When should a patient ideally take the fasting blood sugar test?
A. After lunch
B. At bedtime
C. In the morning before breakfast
D. Immediately after exercise
19. What is the main difference between FBS and RBS tests?
A. FBS requires fasting, RBS does not
B. RBS is always more accurate than FBS
C. FBS is done after a meal, RBS is done before a meal
D. FBS uses capillary blood only, RBS uses venous blood only
20. Why is fasting required before a fasting blood sugar test?
A. To increase blood sugar levels
B. To stabilize insulin levels
C. To measure baseline glucose without influence from food
D. To hydrate the body
