Nursing Elites

1. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?

• A. Antiplatelets
• B. Beta-adrenergic blockers
• C. ACE inhibitors
• D. Calcium channel blockers

Correct answer: B

Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.

2. What is the antidote for Heparin?

• A. Protamine sulfate
• B. Narcan
• C. Romazicon
• D. Naloxone

Correct answer: A

Rationale: The correct answer is A: Protamine sulfate. Heparin is an anticoagulant medication used to prevent blood clots. In cases of overdose or excessive bleeding due to Heparin, protamine sulfate is administered as the specific antidote. Protamine sulfate works by neutralizing Heparin's anticoagulant activity. Choices B, C, and D are incorrect. Narcan (Naloxone) is used to reverse opioid overdose, Romazicon (Flumazenil) is used to reverse benzodiazepine overdose, and Naloxone is also used to reverse opioid overdose but is not the antidote for Heparin.

3. When teaching a client who has a prescription for Lisinopril, which of the following instructions should the nurse include?

• A. Take the medication at bedtime.
• B. Monitor for a persistent cough.
• C. Expect to have increased appetite.
• D. Avoid foods high in potassium.

Correct answer: B

Rationale: The correct answer is B: 'Monitor for a persistent cough.' Lisinopril, an ACE inhibitor, can cause a persistent dry cough as a side effect. It is essential for the client to report this symptom to their healthcare provider for further evaluation and management. Choice A is incorrect because Lisinopril is typically taken in the morning. Choice C is incorrect as Lisinopril is not known to cause increased appetite. Choice D is also incorrect as Lisinopril can lead to increased potassium levels in the blood, so avoiding foods high in potassium is not necessary.

4. A client's plasma Lithium level is 2.1 mEq/L. Which of the following is an appropriate action by the nurse?

• A. Perform immediate gastric lavage.
• B. Prepare the client for hemodialysis.
• C. Administer an additional oral dose of lithium.
• D. Request a stat repeat of the laboratory test.

Correct answer: A

Rationale: In a client with a plasma lithium level of 2.1 mEq/L, immediate gastric lavage is appropriate for severe toxicity. Gastric lavage can help lower the client's lithium level by removing the unabsorbed lithium from the stomach.

5. What is the classification of Ondansetron?

• A. Antihypertensive
• B. Antiarrhythmic
• C. Antiemetic
• D. Antiulcer agent

Correct answer: C

Rationale: Ondansetron is classified as an antiemetic. It is commonly used to prevent nausea and vomiting, especially in patients undergoing chemotherapy or surgery. Choice A, Antihypertensive, is incorrect as Ondansetron is not used to treat high blood pressure. Choice B, Antiarrhythmic, is incorrect as Ondansetron is not used to manage heart rhythm abnormalities. Choice D, Antiulcer agent, is incorrect as Ondansetron is not primarily indicated for treating ulcers.

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