which part of the brain regulates heart rate respiratory rate and blood pressure
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Nursing Elites

ATI RN

ATI Anatomy and Physiology

1. Which part of the brain regulates heart rate, respiratory rate, and blood pressure?

Correct answer: Medulla Oblongata

Rationale: The correct answer is the Medulla Oblongata. This part of the brain is responsible for regulating essential autonomic functions such as heart rate, respiratory rate, and blood pressure. The Corpus Callosum is responsible for connecting the left and right hemispheres of the brain, not for regulating these vital functions. The Pituitary Glands and Pineal Glands are part of the endocrine system and are not directly involved in regulating heart rate, respiratory rate, and blood pressure.

2. Conditions that promote disease or injury and prevent people from realizing their health potential are termed as:

Correct answer: B

Rationale: The correct term for conditions that promote disease or injury and hinder people from achieving their health potential is 'health threats.' These are factors that pose a risk to an individual or community's health, such as environmental hazards, lifestyle choices, or infectious diseases.

3. During a staffing crisis, managers may need to use nurse extenders. These individuals are better known as:

Correct answer: B

Rationale: During a staffing crisis, managers may need to utilize unlicensed assistive personnel (UAPs) as nurse extenders. UAPs help free up nurses' time, enabling them to focus more on direct client care. Float RNs (Choice A) refer to registered nurses who work in various units as needed, not specifically as nurse extenders during crises. LPNs (Choice C) are licensed practical nurses, not typically used as nurse extenders. Agency nurses (Choice D) are temporary nurses hired from external agencies, not necessarily designated as nurse extenders.

4. Which organ has the greatest effect on fluid output?

Correct answer: A

Rationale: The correct answer is the kidneys. The kidneys are primarily responsible for regulating fluid balance by filtering blood and adjusting the volume and concentration of urine. The lungs primarily regulate gas exchange, not fluid balance. The skin plays a role in temperature regulation and protection but is not the primary organ for fluid output. The intestines are mainly involved in the absorption of nutrients and water, rather than fluid output.

5. A patient is taking a statin for hyperlipidemia. What important instruction should the nurse provide to the patient?

Correct answer: A

Rationale: The correct answer is to instruct the patient to take the medication at night to avoid muscle pain. Statins are known to potentially cause muscle pain or weakness; taking the medication at night can help reduce the incidence of these side effects. Option B is incorrect because the timing of statin administration is not related to its effectiveness throughout the day. Option C is a general precaution when taking medications but not the most important instruction specific to statins. Option D is incorrect as taking the medication with a high-fat meal can actually decrease its absorption.

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