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1. A nurse is reviewing the medical record of a client who is receiving warfarin for atrial fibrillation. Which of the following findings should the nurse report to the provider?
- A. International normalized ratio (INR) of 2.5
- B. Platelet count of 180,000/mm³
- C. Prothrombin time (PT) of 12 seconds
- D. Partial thromboplastin time (PTT) of 30 seconds
Correct answer: C
Rationale: A prothrombin time (PT) of 12 seconds is below the therapeutic range for warfarin and indicates a need for dosage adjustment. The correct answer is C. A normal International normalized ratio (INR) for a client on warfarin therapy is usually between 2.0 to 3.0; therefore, an INR of 2.5 is within the expected range. A platelet count of 180,000/mm³ is within the normal range (150,000 to 450,000/mm³) and does not require immediate reporting. A partial thromboplastin time (PTT) of 30 seconds is also within the normal range (25-35 seconds) and does not indicate a need for urgent action.
2. A nurse is caring for a client who has a serum sodium level of 125 mEq/L. Which of the following findings should the nurse expect?
- A. Numbness of the extremities.
- B. Abdominal cramping.
- C. Bradycardia.
- D. Positive Chvostek's sign.
Correct answer: B
Rationale: Abdominal cramping is a common manifestation of hyponatremia, as the sodium imbalance affects muscle function. Numbness of the extremities (Choice A) is more commonly associated with electrolyte imbalances such as hypocalcemia. Bradycardia (Choice C) is not typically a direct manifestation of hyponatremia. Positive Chvostek's sign (Choice D) is related to hypocalcemia, not hyponatremia.
3. A nurse is reviewing the medical record of a client who was admitted for acute kidney injury. Which of the following laboratory values should the nurse expect to be elevated?
- A. Creatinine
- B. Magnesium
- C. Hemoglobin
- D. White blood cell count
Correct answer: A
Rationale: Creatinine is the correct answer. In acute kidney injury, creatinine levels are expected to be elevated due to impaired renal function. Magnesium, hemoglobin, and white blood cell count are not typically elevated in acute kidney injury. Magnesium levels may be affected in kidney disease, but elevation is not a common finding in acute kidney injury.
4. What is the first step in managing a client with delirium?
- A. Administer sedative medication to calm the client
- B. Identify any reversible causes of delirium
- C. Limit environmental stimulation to reduce anxiety
- D. Administer antipsychotic medication to control behavior
Correct answer: B
Rationale: The correct first step in managing a client with delirium is to identify any reversible causes of delirium. This is crucial because addressing the underlying cause can help in resolving delirium more effectively. Administering sedative or antipsychotic medications without addressing the root cause may not be helpful and can even worsen the condition. Limiting environmental stimulation, although important, is not the primary step in managing delirium.
5. A nurse is preparing to administer medications to a client who is NPO and is receiving enteral feedings through an NG tube. Which of the following prescriptions should the nurse clarify with the provider?
- A. Metoprolol ER 50 mg via NG tube BID
- B. Acetaminophen 650 mg PO BID
- C. Lisinopril 10 mg PO daily
- D. Ondansetron 4 mg IV push PRN
Correct answer: B
Rationale: The nurse should clarify prescription B, Acetaminophen 650 mg PO BID, with the provider. When a patient is NPO and receiving enteral feedings through an NG tube, medications administered orally may be contraindicated due to the risk of aspiration. Therefore, Acetaminophen should be confirmed for safety in this situation. The other options (Metoprolol ER 50 mg via NG tube BID, Lisinopril 10 mg PO daily, Ondansetron 4 mg IV push PRN) are appropriate and do not need clarification in this scenario.
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