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. What is the priority nursing diagnosis for a patient experiencing a migraine headache?
- A. Acute pain related to biologic and chemical factors
- B. Anxiety related to change in or threat to health status
- C. Hopelessness related to deteriorating physiological condition
- D. Risk for side effects related to medical therapy
Correct answer: A
Rationale: The priority nursing diagnosis for a patient experiencing a migraine headache is 'Acute pain related to biologic and chemical factors.' Migraine headaches are characterized by severe throbbing pain, often accompanied by sensitivity to light and sound. Addressing the acute pain is crucial to improve the patient's comfort and quality of life. Choices B, C, and D are not the priority nursing diagnoses for a patient with a migraine headache. Anxiety, hopelessness, and risk for side effects may not be as urgent as managing the acute pain associated with a migraine.
3. A patient with severe mitral regurgitation and decreased cardiac output is being cared for by a nurse. The nurse assesses the patient for mental status changes. What is the rationale for this intervention?
- A. Decreased cardiac output can cause hypoxia to the brain
- B. Mental status changes may be a side effect of the patient's medication
- C. Mitral regurgitation is a complication associated with some neurological disorders
- D. The patient may be confused about his diagnosis
Correct answer: A
Rationale: When caring for a patient with severe mitral regurgitation and decreased cardiac output, assessing for mental status changes is crucial. Decreased cardiac output can lead to inadequate perfusion and oxygenation of vital organs, including the brain, resulting in hypoxia. This hypoxia can manifest as mental status changes such as confusion, restlessness, or lethargy. Therefore, monitoring mental status helps in identifying potential hypoxic states and guiding appropriate interventions. The other options are incorrect as they do not directly correlate decreased cardiac output with potential hypoxia-induced mental status changes.
4. The nurse is reviewing the lab results of a patient taking lithium for schizoaffective disorder. The lab results show that the blood lithium value is 1.7 mcg/L. What would the nurse take as the priority action?
- A. Induce vomiting
- B. Hold the next dose of Lithium
- C. Administer an antiemetic
- D. Give the next dose of Lithium
Correct answer: B
Rationale: The correct answer is to hold the next dose of Lithium. The blood lithium value of 1.7 mcg/L exceeds the therapeutic range of 0.5-1.5 mcg/L, indicating potential toxicity. Holding the next dose is crucial to prevent further accumulation of lithium in the bloodstream. Inducing vomiting is not appropriate in this situation as the priority is to prevent further absorption of lithium. Administering an antiemetic is not the priority in lithium toxicity. Giving the next dose of lithium would exacerbate the toxicity and should be avoided.
5. Which topic is most important to include in patient teaching for a 41-year-old patient diagnosed with early alcoholic cirrhosis?
- A. Maintaining good nutrition
- B. Avoiding alcohol ingestion
- C. Taking lactulose (Cephulac)
- D. Using vitamin B supplements
Correct answer: B
Rationale: The most important topic to include in patient teaching for a 41-year-old patient diagnosed with early alcoholic cirrhosis is avoiding alcohol ingestion. Alcohol abstinence is crucial in stopping or reversing the progression of the disease. While maintaining good nutrition, taking lactulose (Cephulac), and using vitamin B supplements are important interventions in managing cirrhosis, abstaining from alcohol is the priority for this patient to prevent further damage to the liver and halt disease progression.
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