NCLEX CRUSADE ACADEMY TEST - 6 LAB TO KNOW FOR THE NCLEX

1. What is the normal serum sodium (Na) range?. 125–135 mEq/L. 130–140 mEq/L. 135–145 mEq/L. 140–150 mEq/L.

2. Which ECG finding is most commonly associated with hyperkalemia?. Flattened T waves. Peaked T waves. Short PR interval. Absent P waves.

3. A potassium level of 3.0 mEq/L indicates which condition?. Hyperkalemia. Hypokalemia. Hypernatremia. Hypocalcemia.

4. The normal potassium range is: 2.5–4.0 mEq/L. 3.0–4.5 mEq/L. 3.5–5.0 mEq/L. 4.0–6.0 mEq/L.

5. Which finding is associated with hypocalcemia?. Muscle weakness. Tetany and cramps. Bradycardia. Hyperreflexia only.

6. Which sign may be positive in hypocalcemia?. Babinski sign. Kernig sign. Trousseau’s sign. Murphy’s sign.

7. What is the normal serum calcium range?. 7–9 mg/dL. 8–10 mg/dL. 9–10.5 mg/dL. 10–12 mg/dL.

8. Phosphorus levels below 3.0 mg/dL may indicate: Starvation. Kidney failure. Tumor lysis syndrome. Hyperparathyroidism.

9. Elevated phosphorus levels above 4.5 mg/dL are often associated with: Dehydration. Renal failure. Liver failure. Hypoglycemia.

10. The normal fasting blood glucose range is: 50–90 mg/dL. 60–100 mg/dL. 70–110 mg/dL. 90–140 mg/dL.

11. A 2 hour post prandial glucose level should be: <120 mg/dL. <140 mg/dL. <160 mg/dL. <180 mg/dL.

12. What preparation is required before a fasting glucose test?. No food for 4 hour. No food for 6 hours. NPO 8–10 hours. No water for 12 hours.

13. Troponin levels typically begin to rise after myocardial infarction in: 1–2 hours. 4–6 hours. 12–24 hours. 48 hours.

14. Troponin usually peaks at approximately: 6 hours. 12–24 hours. 24–36 hours. 48–72 hours.

15. Which lab is monitored when a patient receives heparin therapy?. PT. INR. aPTT. Platelet count.

16. The antidote for heparin toxicity is: Vitamin K. Protamine sulfate. Calcium gluconate. Naloxone.

17. Warfarin therapy is monitored using which laboratory test?. PT/INR. aPTT. Hemoglobin. Platelets.

18. What INR value generally indicates increased bleeding risk in warfarin therapy?. >1.5. >2. >3. >5.

19. The antidote for warfarin toxicity is: Vitamin K. Protamine sulfate. Calcium chloride. Sodium bicarbonate.

20. Which measure is recommended for patients on bleeding precautions?. Hard toothbrush. Electric razor. Contact sports. Aspirin use.

21. Hemoglobin values below 12 g/dL may indicate: COPD. Polycythemia. Anemia. Dehydration.

22. Hemoglobin greater than 15 g/dL may suggest: Dehydration. Liver failure. Infection. Hypoglycemia.

23. BUN is primarily used to evaluate: Liver function. Kidney function. Heart function. Thyroid function.

24. Elevated BUN may indicate: Liver failure. Dehydration. Hypoglycemia. Hypercalcemia.

25. Creatinine is considered the most reliable indicator of: Liver function. Renal function. Cardiac function. Immune function.

26. Which urinalysis finding suggests infection?. Ketones. Nitrites. Protein. Glucose.

27. Normal urine specific gravity range is approximately: 1.000–1.005. 1.005–1.030. 1.030–1.050. 1.050–1.070.

28. Which lab value is elevated in dehydration due to hemoconcentration?. Hematocrit. Calcium. Albumin. Sodium only.

29. In liver cirrhosis, which lab value commonly decreases?. Bilirubin. Albumin. Ammonia. PT.

30. Which lab value increases in liver failure and contributes to encephalopathy?. Ammonia. Glucose. Calcium. Potassium.

31. According to NCLEX diagnostic priority rules, which test should be done first for suspected UTI?. CT scan. Sonogram. Urinalysis. IV pyelogram.

32. Which finding after colonoscopy should be reported immediately?. Passing gas. Mild bloating. Rectal bleeding. Mild fatigue.

33. Which electrolyte imbalance can cause seizures?. Hypocalcemia. Hypermagnesemia. Hypernatremia. Hyperglycemia.

34. Which ECG change is associated with hypokalemia?. Peaked T waves. U waves. ST elevation. Short QT interval.

35. When treating anemia, why must hematocrit increases be monitored closely?. Risk of stroke. Risk of seizure if it rises too quickly. Risk of hypoglycemia. Risk of infection.