NCLEX-RN
NCLEX RN Exam Review Answers
1. A female patient is prescribed metformin for glucose control. The patient is on NPO status pending a diagnostic test. The nurse is most concerned about which side effect of metformin?
- A. Diarrhea and Vomiting
- B. Dizziness and Drowsiness
- C. Metallic taste
- D. Hypoglycemia
Correct answer: D
Rationale: The correct answer is 'Hypoglycemia.' When a patient is on NPO status (nothing by mouth) and prescribed metformin, there is an increased risk of hypoglycemia due to the absence of oral intake. Metformin, as an anti-glycemic drug, can lower blood sugar levels, and without food intake, the risk of hypoglycemia is higher. Diarrhea and vomiting are common gastrointestinal side effects of metformin but are not the main concern in this scenario. Dizziness and drowsiness are potential side effects of some medications but are not typically associated with metformin. Metallic taste is a known side effect of metformin but is not the primary concern in this situation where hypoglycemia is more critical to monitor due to the patient's NPO status.
2. Clinical manifestations of asthma include:
- A. Decreased expiratory time
- B. Increased peak expiratory flow
- C. Increased use of accessory muscles
- D. Increased oxygen saturation
Correct answer: C
Rationale: Clinical manifestations of asthma include increased use of accessory muscles, increased expiratory time, increased peak expiratory flow, and decreased oxygen saturation. Choice A, 'Decreased expiratory time,' is incorrect because asthma typically presents with increased expiratory time due to airway obstruction. Choice B, 'Increased peak expiratory flow,' is incorrect as asthma commonly leads to decreased peak expiratory flow due to airway constriction. Choice D, 'Increased oxygen saturation,' is incorrect because asthma exacerbations often result in decreased oxygen saturation levels.
3. A patient with a cast on the right leg is being cared for by a nurse. Which of the following assessment findings would be most concerning for the nurse?
- A. The capillary refill time is 2 seconds
- B. The patient complains of itching and discomfort
- C. The cast has a foul-smelling odor
- D. The patient is on antibiotics
Correct answer: C
Rationale: A foul-smelling odor emanating from the cast is a concerning finding as it indicates the possibility of infection or the presence of a pressure ulcer. These conditions can lead to serious complications if not promptly addressed. It is crucial for the nurse to investigate further and take appropriate actions to prevent potential harm to the patient. The other options do not directly indicate a risk of infection or complications associated with the cast. Itching and discomfort are common complaints due to wearing a cast, and the patient being on antibiotics may be part of their treatment plan for an unrelated condition. Capillary refill time of 2 seconds is within the normal range and would not be a cause for immediate concern in this scenario.
4. When teaching the client with tuberculosis about follow-up home care, the nurse should emphasize that a laboratory appointment for which of the following lab tests is critical?
- A. Liver function
- B. Kidney function
- C. Blood sugar
- D. Cardiac enzymes
Correct answer: A
Rationale: The nurse should emphasize the importance of monitoring liver function tests in clients taking INH due to the risk of hepatocellular injury and hepatitis associated with this medication. Regular assessment of liver enzymes can help detect liver damage early. Monitoring kidney function, blood sugar levels, or cardiac enzymes is not specifically required for clients taking INH and tuberculosis treatment.
5. A healthcare professional is reviewing a patient's chart and notices that the patient suffers from Lyme disease. Which of the following microorganisms is related to this condition?
- A. Borrelia burgdorferi
- B. Streptococcus pyogenes
- C. Bacillus anthracis
- D. Enterococcus faecalis
Correct answer: A
Rationale: Lyme disease, the most common vector-borne disease in the United States, is caused by the bacterium Borrelia burgdorferi. Borrelia burgdorferi is transmitted to humans through the bite of infected black-legged ticks. Streptococcus pyogenes is associated with strep throat and other infections, not Lyme disease. Bacillus anthracis causes anthrax, a separate infectious disease. Enterococcus faecalis is more commonly linked to urinary tract infections and other healthcare-associated infections, not Lyme disease.
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