Nursing Elites

1. Prior to elective surgery, a patient taking warfarin should receive which instruction regarding warfarin therapy?

• A. Continue taking warfarin until the day of surgery.
• B. Stop taking warfarin three days before surgery.
• C. Switch to aspirin before surgery.
• D. Stop taking warfarin one week before surgery.

Correct answer: D

Rationale: Prior to elective surgery, a patient taking warfarin should be instructed to stop taking warfarin around one week before the procedure. This timeframe allows for the effects of warfarin to diminish, lowering the risk of excessive bleeding during surgery. Continuing warfarin until the day of surgery (Choice A) increases the risk of bleeding complications. Stopping warfarin three days before surgery (Choice B) may not provide enough time for the anticoagulant effects to subside. Switching to aspirin before surgery (Choice C) is not recommended as a substitute for warfarin in this context.

2. A healthcare provider is preparing to administer a scheduled dose of intravenous (IV) metoprolol (Lopressor) to a client. The client's apical pulse is 58 beats/minute. What action should the healthcare provider take?

• A. Administer the medication as prescribed.
• B. Hold the medication and notify the healthcare provider.
• C. Give half the prescribed dose and recheck the pulse in 30 minutes.
• D. Administer the medication and then recheck the pulse in 30 minutes.

Correct answer: B

Rationale: In the scenario described, with the client's apical pulse being 58 beats/minute, holding the medication and notifying the healthcare provider is the correct action. A low pulse rate may indicate bradycardia and may necessitate dose adjustment or further evaluation by the healthcare provider to prevent potential complications.

3. A 30-year-old woman presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?

• A. Type 1 diabetes mellitus
• B. Type 2 diabetes mellitus
• C. Diabetes insipidus
• D. Hyperthyroidism

Correct answer: A

Rationale: The clinical presentation of a 30-year-old woman with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria is highly suggestive of type 1 diabetes mellitus. Type 1 diabetes mellitus is characterized by autoimmune destruction of pancreatic beta cells, leading to insulin deficiency and subsequent hyperglycemia. The presence of ketonuria indicates the breakdown of fats for energy due to the lack of insulin. In contrast, type 2 diabetes mellitus typically presents with gradual onset and is often associated with insulin resistance rather than absolute insulin deficiency. Diabetes insipidus is characterized by polyuria and polydipsia but is not associated with hyperglycemia or ketonuria. Hyperthyroidism may present with symptoms like fatigue but does not typically cause hyperglycemia or ketonuria.

4. What is the primary action of digoxin when prescribed to a patient with heart failure?

• A. Increase heart rate
• B. Decrease cardiac output
• C. Strengthen cardiac contractions
• D. Lower blood pressure

Correct answer: C

Rationale: Digoxin, when prescribed to a patient with heart failure, primarily acts by strengthening cardiac contractions. This leads to an improvement in cardiac output, making it an essential medication in managing heart failure. By enhancing the force of contractions, digoxin helps the heart pump more effectively and efficiently, leading to better circulation and symptom control in patients with compromised cardiac function.

5. A 45-year-old obese man arrives at a clinic reporting daytime sleepiness, difficulty falling asleep at night, and snoring. The nurse should recognize the manifestations of what health problem?

• A. Adenoiditis
• B. Chronic tonsillitis
• C. Obstructive sleep apnea
• D. Laryngeal cancer

Correct answer: C

Rationale: The symptoms described, including daytime sleepiness, difficulty falling asleep at night, and snoring, are classic signs of obstructive sleep apnea. This condition is commonly seen in obese individuals due to the relaxation of throat muscles during sleep, leading to airway obstruction. Adenoiditis and chronic tonsillitis are less likely as they don't typically present with the same symptoms mentioned.

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