Which of the following is the gold standard labora

Question 1 of 9

Which of the following is the gold standard laboratory test in identifying heart damage from an acute myocardial infarction?

A. Myoglobin B. Troponin C. Creatine kinase (CK) D. Aspartate aminotransferase (AST)

Correct Answer: B

Rationale: Troponin is highly specific for cardiac injury and is considered the gold standard for diagnosing acute myocardial infarction.

Question 2 of 9

The pathophysiologic mechanism that results in the pulmonary edema of left sided heart failure is

A. Increased right ventricular preload B. Increased pulmonary hydrostatic pressure C. Impaired alveolar oxygen and carbon dioxide exchange D. Increased lymphatic flow of pulmonary extravascular fluid

Correct Answer: B

Rationale: In left sided heart failure, blood backs up into the pulmonary veins and capillaries. This increased hydrostatic pressure in the vessels causes fluid to move out of the vessels and into the pulmonary interstitial space.

Question 3 of 9

Which of the following is the gold standard laboratory test in identifying heart damage from an acute myocardial infarction?

A. Myoglobin B. Troponin C. Creatine kinase (CK) D. Aspartate aminotransferase (AST)

Correct Answer: B

Rationale: Troponin is highly specific for cardiac injury and is considered the gold standard for diagnosing acute myocardial infarction.

Question 4 of 9

PFT (Pulmonary Function Test).

A. Spirometry B. Diffusion capacity C. Both A and B D. None of the above

Correct Answer: C

Rationale: PFTs assess lung function using spirometry and diffusion tests.

Question 5 of 9

What does the nursing responsibility in the management of the patient with hypertensive urgency often include?

A. Monitoring hourly urine output for drug effectiveness B. Titration of IV drug dosages based on BP measurements every 2 to 3 minutes C. Providing continuous electrocardiographic (ECG) monitoring to detect side effects of the drugs D. Instructing the patient to follow up with a health care professional within 24 hours after outpatient treatment

Correct Answer: D

Rationale: Follow-up ensures ongoing management.

Question 6 of 9

Examination of a patient in a supine position reveals distended jugular veins from the base of the neck to the angle of the jaw. This finding indicates:

A. decreased venous return. B. increased central venous pressure. C. increased pulmonary artery capillary pressure. D. left-sided heart failure.

Correct Answer: B

Rationale: Distended jugular veins indicate increased central venous pressure, often due to right-sided heart failure or fluid overload.

Question 7 of 9

A patient who underwent coronary artery bypass surgery demonstrates effective understanding of discharge teaching by:

A. asking whether smoking one cigarette per day is acceptable. B. clarifying when cardiac rehabilitation will begin. C. describing plans to relax in a hot tub during recovery. D. planning to resume driving their spouse to work next week.

Correct Answer: B

Rationale: Clarifying the start of cardiac rehabilitation shows understanding of the importance of recovery.

Question 8 of 9

Based on these findings, which patient has the highest cardiac risk?

A. The man, because his HDL is lower B. The woman, because her HDL is higher C. The woman, because her cholesterol is higher D. The man, because his cholesterol-to-HDL ratio is higher

Correct Answer: D

Rationale: A higher cholesterol-to-HDL ratio increases cardiac risk.

Question 9 of 9

You are teamed with an LPN/LVN in caring for a group of patients on the cardiac unit. Which action by the LPN/LVN indicates you need to intervene immediately?

A. The LPN/LVN assists a patient to the bathroom 30 minutes after the patient has returned from a coronary arteriogram. B. The LPN/LVN checks a patient's blood pressure before administering nitroglycerin (Nitro-Stat) 0.4 mg SL. C. The LPN/LVN returns a patient to bed after the patient's heart rate increases from 72 to 96 while ambulating in the hall. D. The LPN/LVN brings breakfast to a patient who is scheduled for an echocardiogram later in the morning.

Correct Answer: A

Rationale: Post-coronary arteriogram, patients need rest to prevent bleeding at the puncture site; assisting them to the bathroom too soon can increase the risk of complications.

Which of the following is the gold standard laboratory test in identifying heart damage from an acute myocardial infarction?

Nurselytic

ATI RN

ATI RN

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