the nurse is preparing to administer a beta blocker to a client with hypertension what is the priority assessment
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Cardiovascular System Exam Questions

1. The nurse is preparing to administer a beta blocker to a client with hypertension. What is the priority assessment?

Correct answer: B

Rationale: The correct answer is to check the client's blood pressure. Before administering a beta blocker to a client with hypertension, assessing the blood pressure is crucial because beta blockers can cause hypotension, potentially leading to adverse effects. Checking the heart rate may also be important but is secondary to monitoring the blood pressure in this scenario. Respiratory rate and temperature assessments are not directly related to assessing the client's response to a beta blocker in hypertension management, making choices C and D less relevant.

2. Which test measures how much and how quickly you can move air out of your lungs?

Correct answer: A

Rationale: The correct answer is A, Spirometry. Spirometry is a common pulmonary function test that measures lung function by assessing the amount (volume) and speed (flow) of air that can be inhaled and exhaled. This test helps in diagnosing conditions like asthma, chronic obstructive pulmonary disease (COPD), and other lung diseases. Peak flow meter (choice B) measures the maximum speed at which a person can exhale air, mainly used in asthma management. Lung volume test (choice C) evaluates the total amount of air the lungs can hold. Arterial blood gas (choice D) measures the levels of oxygen and carbon dioxide in the blood, providing information on how well the lungs are functioning in gas exchange, but it does not specifically measure the amount and speed of air movement in and out of the lungs like spirometry does.

3. The client on nitroglycerin complains of a headache. How does the nurse explain this?

Correct answer: A

Rationale: The correct answer is A: 'This is a normal side effect of nitroglycerin.' Headaches are a common side effect of nitroglycerin due to vasodilation. Choice B is incorrect because allergic reactions to nitroglycerin typically present with symptoms like rash, itching, or shortness of breath. Choice C is incorrect as an overdose of nitroglycerin would likely present with symptoms beyond just a headache. Choice D is incorrect because headaches related to nitroglycerin are not indicative of heart failure.

4. Which of the following is a central vasoconstrictor and peripheral vasodilator?

Correct answer: D

Rationale: The correct answer is D, Epinephrine. Epinephrine acts as a central vasoconstrictor and peripheral vasodilator. It increases heart rate and blood flow to muscles, helping to prepare the body for a 'fight or flight' response. Parasympathetic nervous system (choice A) does not cause vasoconstriction but rather vasodilation. The sympathetic nervous system (choice B) is primarily responsible for the fight or flight response, causing vasoconstriction. Dopamine (choice C) primarily acts as a neurotransmitter and hormone, not directly causing central vasoconstriction and peripheral vasodilation.

5. Which fibers distribute the electrical impulse to the ventricles, causing them to contract?

Correct answer: A

Rationale: The correct answer is Purkinje fibers. Purkinje fibers are specialized conducting fibers that distribute the electrical impulse to the ventricles, leading to their contraction. The SA node (sinoatrial node) is responsible for initiating the electrical impulse in the heart, the AV node (atrioventricular node) delays the impulse to allow for proper atrial contraction before ventricular contraction, and the Bundle of His transmits the impulse from the AV node to the ventricles. Therefore, choices B, C, and D are not the correct options for fibers directly distributing the impulse to the ventricles.

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