NCLEX-RN
NCLEX RN Practice Test Free Questions
Extract:
Question 1 of 5
The physician has ordered a homocysteine blood level on a client. The nurse recognizes that the results will be increased in a client with a deficiency in:
Correct Answer: A
Rationale: Homocysteine levels rise with vitamin B12 deficiency, as B12 is needed for homocysteine metabolism, unlike other vitamins listed.
Question 2 of 5
The nurse is doing bowel and bladder retraining for the client with paraplegia. Which of the following is not a factor for the nurse to consider?
Correct Answer: D
Rationale: Sexual function is not directly related to bowel and bladder retraining, unlike diet, mobility, and fluid intake.
Question 3 of 5
A client sustained a severe head injury to the occipital lobe. The nurse should carefully assess the client for:
Correct Answer: A
Rationale: The occipital lobe processes visual information, so injury to this area is likely to cause visual disturbances, such as blurred vision or visual field deficits.
Question 4 of 5
A client with a head injury has an intracranial pressure (ICP) monitor in place. Cerebral perfusion pressure calculations are ordered. If the client's ICP is 22 and the mean pressure reading is 70, what is the client's cerebral perfusion pressure?
Correct Answer: D
Rationale: Cerebral perfusion pressure (CPP) = Mean Arterial Pressure (MAP) - ICP. Given MAP = 70 and ICP = 22, CPP = 70 - 22 = 48. Thus, the answer is 48.
Question 5 of 5
The doctor has ordered 80 mg of furosemide (Lasix) two times per day. The nurse notes the patient's potassium level to be 2.5 meq/L. The nurse should:
Correct Answer: D
Rationale: A potassium level of 2.5 mEq/L is dangerously low; withholding Lasix and notifying the doctor prevents further potassium loss.