NCLEX-RN
NCLEX RN Practice Exam Questions
Extract:
Question 1 of 5
A client with cancer is admitted to the oncology unit. Stat lab values reveal Hgb 12.6, WBC 6500, K+ 1.9, uric acid 7.0, Na+ 136, and platelets 178,000. The nurse evaluates that the client is experiencing which of the following?
Correct Answer: B
Rationale: A potassium level of 1.9 mEq/L indicates hypokalemia, which is a critical electrolyte imbalance.
Question 2 of 5
The glycosylated hemoglobin of a 40-year-old client with diabetes mellitus is 2.5%. The nurse understands that:
Correct Answer: B
Rationale: A glycosylated hemoglobin (HbA1c) of 2.5% is below the normal range (4-5.6%), indicating overly tight glucose control, but in context, it suggests good diabetes management.
Question 3 of 5
An obstetrical client with diabetes has an amniocentesis at 28 weeks gestation. Which test indicates the degree of fetal lung maturity?
Correct Answer: D
Rationale: The lecithin-sphingomyelin (L/S) ratio assesses fetal lung maturity by measuring surfactant levels, critical for preterm delivery planning in diabetic pregnancies.
Question 4 of 5
The most appropriate means of rehydration of a 7-month-old with diarrhea and mild dehydration is:
Correct Answer: A
Rationale: Oral rehydration therapy with electrolyte solutions is the standard for mild dehydration in infants, as it effectively restores fluid and electrolyte balance.
Question 5 of 5
A client is prescribed heparin 2,000 units SC q8 hours. The pharmacy sends heparin 5,000 units/mL. How many mL should the nurse administer every 24 hours?
Correct Answer: C
Rationale: Dose per injection: 2,000 units ÷ 5,000 units/mL = 0.4 mL. Q8 hours = 3 doses/day. 0.4 mL × 3 = 1.2 mL/day.