NCLEX-RN
NCLEX RN Exam Preview Answers
1. The nurse is preparing to examine a 4-year-old child. Which action by the nurse is appropriate for this age group?
- A. Explain the procedures briefly to alleviate the child's anxiety.
- B. Give the child feedback and reassurance during the examination.
- C. Ask the child to undress as needed for the examination.
- D. Perform an examination of the head last.
Correct answer: B
Rationale: For a 4-year-old child, short and simple explanations should be provided to avoid overwhelming the child. It is important to give feedback and reassurance during the examination to create a comforting environment for the child. Asking the child to undress as needed is appropriate for a thorough examination, as children at this age are usually willing to do so. Performing an examination of the head last allows the child to become more comfortable during the assessment. Therefore, the most appropriate action for a 4-year-old child is to provide feedback and reassurance during the examination, ensuring a positive experience for the child.
2. What procedure examines a portion of the large intestine with an endoscope?
- A. Colposcopy
- B. Sigmoidoscopy
- C. Upper GI
- D. Cardiac catheterization
Correct answer: B
Rationale: Sigmoidoscopy is the correct answer because it specifically examines the sigmoid colon located in the descending colon using an endoscope inserted through the rectum. This procedure captures video and images of the large intestine's lining, helping in the diagnosis of conditions like inflammatory bowel disease or colorectal cancer. Colposcopy, on the other hand, is a procedure for examining the cervix and vagina, not the large intestine. Upper GI involves capturing images of the esophagus and stomach, focusing on the upper gastrointestinal tract, not the large intestine. Cardiac catheterization is a procedure that involves threading a thin instrument through the femoral artery to the heart, used for cardiac interventions and not related to examining the large intestine.
3. 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.
4. For a patient with cirrhosis, which of the following nursing actions can the registered nurse (RN) delegate to unlicensed assistive personnel (UAP)?
- A. Assessing the patient for jaundice
- B. Providing oral hygiene after a meal
- C. Palpating the abdomen for distention
- D. Assisting the patient to choose the diet
Correct answer: B
Rationale: Providing oral hygiene after a meal is an appropriate task to delegate to unlicensed assistive personnel (UAP) as it falls within their scope of practice. UAP can assist with basic personal care activities like oral hygiene. Assessing the patient for jaundice and palpating the abdomen for distention involve making clinical assessments that require a higher level of education and training, typically performed by licensed practical/vocational nurses (LPNs/LVNs) or registered nurses (RNs). Assisting the patient to choose the diet also requires specialized knowledge and would be more appropriate for a nurse to address, considering the complexity of dietary requirements in cirrhosis.
5. A patient's blood pressure is 118/82 mm Hg. The patient asks the nurse, "What do the numbers mean?"? Which is the best reply by the nurse?
- A. "The numbers are within the normal range and are nothing to worry about."?
- B. "The bottom number is the diastolic pressure and reflects the pressure in the arteries when the heart relaxes."?
- C. "The top number is the systolic blood pressure and reflects the pressure of the blood against the arteries when the heart contracts."?
- D. "The concept of blood pressure can be complex. The primary thing to be concerned about is the top number, or the systolic blood pressure."?
Correct answer: C
Rationale: The systolic pressure is the maximum pressure felt on the artery during left ventricular contraction, or systole. The diastolic pressure is the elastic recoil, or resting, pressure that the blood constantly exerts in between each contraction. The nurse should answer the patient's question in terms they can understand and not just say it is normal and there is nothing to worry about. The diastolic pressure is the pressure in the vessels when the heart is at rest, not the stroke volume. Both the systolic and diastolic blood pressure are important. Choice A is incorrect as providing a vague reassurance does not address the patient's query. Choice B is incorrect as it inaccurately describes the diastolic pressure as reflecting stroke volume, which is incorrect. Choice D is incorrect as it oversimplifies the explanation, focusing solely on the top number without providing a complete understanding of blood pressure.
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