What is the primary BP effect of Î²-adrenergic blockers such as atenolol (Tenormin)?

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Cardiovascular System Practice Exam Questions

Question 1 of 5

What is the primary BP effect of Î²-adrenergic blockers such as atenolol (Tenormin)?

A. Vasodilation of arterioles by blocking movement of calcium into cells B. Decrease Na+ and water reabsorption by blocking the effect of aldosterone C. Decrease CO by decreasing rate and strength of the heart and renin secretion by the kidneys D. Vasodilation caused by inhibiting sympathetic outflow from the central nervous system (CNS)

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

In the patient with chest pain, which results can differentiate unstable angina from an MI?

A. ECG changes present at the onset of the pain B. A chest x-ray indicating left ventricular hypertrophy C. Appearance of troponin in the blood 48 hours after the infarct D. Creatine kinase (CK)-MB enzyme elevations that peak 18 hours after the infarct

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Priority Decision: A patient is hospitalized after a successful resuscitation of an episode of sudden cardiac death (SCD). During the care of the patient, what nursing intervention is most important?

A. Continuous ECG monitoring B. Auscultation of the carotid arteries C. Frequent assessment of heart sounds D. Monitoring of airway status and respiratory patterns

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Pneumothorax symptoms.

A. Chest pain B. Shortness of breath C. Both A and B D. None of the above

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Receiving a report that Mr. K.'s prothrombin time (PT) is 4-4.5 times normal, your nursing action would be to

A. call Mr. K.'s physician to report the PT B. stop the heparin infusion C. increase the heparin infusion by 10 mg/hr D. nothing, as the value is therapeutic

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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