NCLEX-RN
NCLEX RN Predictor Exam
1. Specific gravity in urinalysis:
- A. compares the concentration of urine to that of distilled water
- B. is useless when the patient is dehydrated
- C. can only be measured using a refractometer
- D. None of the above
Correct answer: A
Rationale: Specific gravity in urinalysis measures the concentration of solutes in urine compared to that of distilled water. This comparison helps in assessing the kidney's ability to concentrate urine properly. It is a valuable test even in dehydrated patients as it provides insights into renal function. Specific gravity can be measured using various methods, including a refractometer or reagent strips. Normal specific gravity readings of human urine typically range from 1.005 to 1.030. Choice A is correct as it accurately describes the purpose of specific gravity in urinalysis. Choices B and C are incorrect as specific gravity remains relevant in dehydrated patients and can be measured using different techniques, not solely a refractometer.
2. A client is being admitted to the hospital because of a seizure that occurred at his home. The client has no previous history of seizures. In planning the client's nursing care, which of the following measures is most essential at the time of admission?
- A. Place a padded tongue depressor at the head of the bed.
- B. Pad the bed with blankets.
- C. Inform the client about the importance of wearing a medical identification tag.
- D. Teach the client about seizures.
Correct answer: B
Rationale: The most essential measure when admitting a client who had a seizure is to pad the bed with blankets (Option B). This is crucial to prevent injury in case of another seizure. Placing a padded tongue depressor at the head of the bed (Option A) is incorrect as current nursing guidelines advise against putting anything in the client's mouth during a seizure. Informing the client about wearing a medical identification tag (Option C) and teaching the client about seizures (Option D) are important but are more relevant once the cause of the seizure is known. It's crucial to remember that not all seizures are classified as epilepsy.
3. The nurse is reviewing percussion techniques with a new graduate nurse. Which action performed by the graduate nurse while percussing requires the nurse to intervene?
- A. Percussing twice over each area
- B. Striking with the fingertip, not the finger pad
- C. Using the wrist to make the strikes, not the arm
- D. Quickly lifting the striking finger after each stroke
Correct answer: A
Rationale: The correct answer is to percuss twice over each area, not once. This technique helps ensure a more accurate assessment. Striking with the fingertip instead of the finger pad is correct because the tip of the finger produces clearer sounds. Using the wrist to make the strikes instead of the arm is appropriate as it allows for more controlled and precise percussion. Quickly lifting the striking finger after each stroke is also correct to prevent damping off vibrations. Therefore, percussing once over each area (Choice A) is incorrect as it does not follow the standard percussion technique.
4. When should you wear gloves?
- A. preparing infant formula for a newborn baby
- B. transferring breast milk into a baby bottle
- C. knocking on a patient's door
- D. opening a patient's door
Correct answer: B
Rationale: You must wear gloves when transferring breast milk into a baby bottle because breast milk is considered a bodily fluid. It is essential to avoid direct contact to prevent contamination. When preparing infant formula, gloves are not required as formula is not a bodily fluid. Knocking on or opening a patient's door does not involve direct contact with bodily fluids, so gloves are unnecessary in those situations.
5. During a general survey of a patient, which finding is considered normal?
- A. Body mass index (BMI) of 20.
- B. When standing, the patient's base is narrow.
- C. The patient appears older than their stated age.
- D. Arm span (fingertip to fingertip) is greater than the height.
Correct answer: A
Rationale: A body mass index (BMI) of 20 is considered normal as the range for a normal BMI is between 19-24. When standing, a patient's base should be wide for stability and proper weight distribution. An older appearance than the stated age may indicate a history of chronic illness or chronic alcoholism. In a general survey, the patient's arm span (fingertip to fingertip) should approximately equal the patient's height. An arm span greater than the height may suggest Marfan syndrome. Therefore, the correct choice is a normal BMI of 20, which falls within the healthy range. Choices B, C, and D all describe abnormal findings that may indicate underlying health conditions or syndromes.
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