Nokea
What is a type of medication that helps to prevent blood clots by thinning the blood?
- A. Anticoagulant
- B. Beta-blocker
- C. ACE inhibitor
- D. Calcium channel blocker
Correct Answer: A
Rationale: The correct answer is A: Anticoagulant. Anticoagulants prevent blood clots by inhibiting the blood's ability to clot. They do not actually thin the blood, but rather prevent clots from forming. Beta-blockers (B), ACE inhibitors (C), and Calcium channel blockers (D) are not used to prevent blood clots. Beta-blockers are used to treat high blood pressure and heart conditions, ACE inhibitors are used to treat high blood pressure and heart failure, and Calcium channel blockers are used to treat high blood pressure and certain heart conditions.
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The nurse is caring for a client on amiodarone who complains of visual disturbances. What is the nurse's best response?
- A. Notify the healthcare provider immediately.
- B. Reassure the client that this is a common side effect.
- C. Advise the client to monitor their symptoms at home.
- D. Suggest the client reduce physical activity.
Correct Answer: A
Rationale: The correct answer is A: Notify the healthcare provider immediately. Visual disturbances can be a sign of serious side effects of amiodarone, such as optic neuropathy. Promptly notifying the healthcare provider allows for timely evaluation and appropriate management.
Choice B is incorrect because visual disturbances with amiodarone are not common and should not be dismissed as such. Choice C is incorrect as self-monitoring may delay necessary medical intervention. Choice D is also incorrect as reducing physical activity does not address the underlying cause of visual disturbances and may not be necessary.
Which of the following adverse effects should a nurse check for when administering lidocaine?
- A. Convulsions
- B. Amnesia
- C. Dyspnea
- D. Urinary retention
Correct Answer: A
Rationale: Convulsions are a serious adverse effect of lidocaine toxicity, requiring vigilant monitoring.
What is the average cardiac output?
- A. Approximately 4 to 6 L per minute
- B. Approximately 4 to 8 L per minute
- C. Approximately 5 to 8 L per minute
- D. Approximately 3 to 7 L per minute
Correct Answer: B
Rationale: The correct answer is B (Approximately 4 to 8 L per minute) because the average cardiac output in a healthy adult at rest is around 5 L per minute. This range of 4 to 8 L per minute encompasses the typical cardiac output values. Choice A (Approximately 4 to 6 L per minute) is too narrow and excludes the upper range, while Choice C (Approximately 5 to 8 L per minute) is slightly broader but still within the acceptable range. Choice D (Approximately 3 to 7 L per minute) is too low and does not cover the full spectrum of average cardiac output values.
What is the procedure where a small mesh tube is inserted into an artery to keep it open after angioplasty?
- A. Stent placement
- B. Bypass surgery
- C. Angioplasty
- D. Valve replacement
Correct Answer: A
Rationale: The correct answer is A: Stent placement. After angioplasty, a stent is inserted into the artery to prevent it from collapsing and keep it open. This procedure helps maintain blood flow and reduces the risk of blockages. Bypass surgery involves redirecting blood flow using a graft, not inserting a tube. Angioplasty is the initial procedure to open the blocked artery, not to keep it open. Valve replacement is a procedure for replacing damaged heart valves, not for arteries.
Which measure is used to relieve the symptoms of left-sided heart failure?
- A. Weighing the patient daily
- B. Applying an abdominal binder
- C. Maintaining total bed rest
- D. Elevating the patient's head
Correct Answer: D
Rationale: Head elevation reduces pulmonary congestion.