Laboratory And Diagnostic Monitoring - NCLEX Pn

1. What is the expected adult reference range for hematocrit (Hct) in an adult male?

   Male Hct $42\%$–$52\%$. This range signifies normal hematocrit levels representing red blood cell volume in adult males.

2. What is the expected adult reference range for serum magnesium (Mg2+)?

   Mg2+ $1.3$–$2.1$ mEq/L. This range represents normal serum magnesium levels important for enzyme function, muscle relaxation, and cardiac rhythm in adults.

3. What is the expected adult reference range for blood urea nitrogen (BUN)?

   BUN $10$–$20$ mg/dL. This range reflects normal blood urea nitrogen levels assessing kidney function and protein metabolism in adults.

4. What is the expected adult reference range for arterial oxygen saturation (SaO2)?

   SaO2 $95\%$–$100\%$. This range denotes normal arterial oxygen saturation for effective tissue oxygenation in healthy adults.

5. What is the expected adult reference range for hematocrit (Hct) in an adult female?

   Female Hct $37\%$–$47\%$. This range denotes normal hematocrit levels indicating red blood cell proportion in adult females.

6. What is the expected adult reference range for activated partial thromboplastin time (aPTT)?

   aPTT $30$–$40$ seconds. This range indicates normal activated partial thromboplastin time evaluating intrinsic clotting pathway in adults.

7. What is the expected adult reference range for platelet count?

   Platelets $150{,}000$–$400{,}000$/mm$^3$. This range represents normal platelet count crucial for blood clotting and hemostasis in adults.

8. What is the expected adult reference range for urine specific gravity?

   Urine specific gravity $1.005$–$1.030$. This range reflects normal urine specific gravity indicating kidney concentrating ability and hydration status in adults.

9. What is the expected adult reference range for arterial blood pH?

   pH $7.35$–$7.45$. This range represents normal arterial blood pH maintaining acid-base homeostasis in adults.

10. What is the expected adult reference range for hemoglobin A1c (HbA1c) in a nondiabetic adult?

    HbA1c $<5.7\%$. This value represents normal hemoglobin A1c levels indicating average blood glucose control over 2-3 months in nondiabetic adults.

11. What is the expected adult reference range for serum bicarbonate (HCO3−/CO2)?

    HCO3− $22$–$26$ mEq/L. This range signifies normal serum bicarbonate levels vital for regulating blood pH and acid-base equilibrium in adults.

12. What is the expected adult reference range for arterial PaCO2?

    PaCO2 $35$–$45$ mm Hg. This range signifies normal arterial PaCO2 levels reflecting respiratory acid-base balance in adults.

13. What is the expected adult reference range for serum sodium (Na+)?

    Na+ $135$–$145$ mEq/L. This range represents normal serum sodium levels essential for maintaining fluid balance, nerve impulse transmission, and muscle function in adults.

14. What is the expected adult reference range for hemoglobin (Hgb) in an adult female?

    Female Hgb $12$–$16$ g/dL. This range indicates normal hemoglobin levels for oxygen transport in adult females, considering gender-specific differences.

15. What is the expected adult reference range for arterial PaO2?

    PaO2 $80$–$100$ mm Hg. This range indicates normal arterial PaO2 levels ensuring adequate oxygenation in adults at sea level.

16. What is the expected adult reference range for prothrombin time (PT)?

    PT $11$–$12.5$ seconds. This range reflects normal prothrombin time assessing extrinsic clotting pathway in adults not on anticoagulants.

17. What is the expected adult reference range for white blood cell count (WBC)?

    WBC $5{,}000$–$10{,}000$/mm$^3$. This range indicates normal white blood cell count essential for immune response and infection detection in adults.

18. What is the expected adult reference range for total serum calcium (Ca2+)?

    Total Ca2+ $8.5$–$10.5$ mg/dL. This range denotes normal total serum calcium levels necessary for bone health, muscle contraction, and nerve signaling in adults.

19. What is the expected adult reference range for serum chloride (Cl−)?

    Cl− $98$–$106$ mEq/L. This range reflects normal serum chloride levels that help maintain acid-base balance and osmotic pressure in adults.

20. What is the expected adult reference range for serum potassium (K+)?

    K+ $3.5$–$5.0$ mEq/L. This range indicates normal serum potassium levels critical for cardiac rhythm, muscle contraction, and nerve function in adults.

21. What is the typical therapeutic INR range for most indications on warfarin?

    INR $2.0$–$3.0$. This therapeutic range balances anticoagulation efficacy and bleeding risk for warfarin therapy in most clinical indications.

22. What is the expected adult reference range for hemoglobin (Hgb) in an adult male?

    Male Hgb $14$–$18$ g/dL. This range reflects normal hemoglobin levels for oxygen transport in adult males, accounting for gender-specific physiology.

23. What is the expected adult reference range for blood glucose (fasting)?

    Fasting glucose $70$–$99$ mg/dL. This range indicates normal fasting blood glucose levels reflecting proper insulin regulation and energy metabolism in adults.

24. What is the expected adult reference range for serum creatinine?

    Creatinine $0.6$–$1.3$ mg/dL. This range signifies normal serum creatinine levels evaluating glomerular filtration rate and renal function in adults.

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