ATI RN
ATI Anatomy and Physiology
1. Which part of the brain regulates heart rate, respiratory rate, and blood pressure?
- A. Corpus Callosum
- B. Medulla Oblongata
- C. Pituitary Glands
- D. Pineal Glands
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. When instructing a client with a new prescription for Timolol on how to insert eye drops, which area should the nurse instruct the client to press on to prevent systemic absorption of the medication?
- A. Bony orbit
- B. Nasolacrimal duct
- C. Conjunctival sac
- D. Outer canthus
Correct answer: B
Rationale: Pressing on the nasolacrimal duct, located near the inner corner of the eye, blocks the lacrimal punctum and prevents the medication from entering the systemic circulation. This technique helps to ensure the medication stays localized in the eye, enhancing its therapeutic effect while minimizing systemic side effects. Choices A, C, and D are incorrect. The bony orbit is the eye socket and not a site to press for preventing systemic absorption. The conjunctival sac is where eye drops are instilled, not pressed on. The outer canthus is also not the correct area to press to prevent systemic absorption.
3. The healthcare provider is caring for a postoperative client who has a chest tube connected to suction and a water seal drainage system. Which of the following indicates to the healthcare provider that the chest tube is functioning properly?
- A. Fluctuation of the fluid level within the water seal chamber
- B. Absence of fluid in the drainage tubing
- C. Continuous bubbling within the water seal chamber
- D. Equal amounts of fluid drainage in each collection chamber
Correct answer: Fluctuation of the fluid level within the water seal chamber
Rationale: Fluctuation of the fluid level within the water seal chamber indicates proper functioning of the chest tube. This fluctuation reflects the normal ebb and flow of air and fluid in the pleural space, demonstrating that the system is maintaining the appropriate pressure. Continuous bubbling in the water seal chamber may indicate an air leak, absence of fluid in the drainage tubing suggests a blockage, and equal amounts of fluid drainage in each collection chamber are not expected in this system.
4. Which of the following would be the most appropriate goal for an elderly client with a nursing diagnosis of risk for injury after hip surgery?
- A. Client will increase mobility by the time of discharge from hospital
- B. Client will demonstrate effective breathing pattern when ambulating throughout hospital stay
- C. Client will increase activity tolerance by discharge from the hospital
- D. Client will remain free from falls throughout their hospital stay
Correct answer: Client will remain free from falls throughout their hospital stay
Rationale:
5. A nurse is reviewing admission prescriptions for a group of clients. Which prescription should the nurse identify as complete?
- A. Furosemide 20 mg BID
- B. Aspirin 1 tablet daily
- C. Nitroglycerin transdermal patch
- D. Metoprolol 5 mg IV now
Correct answer: A
Rationale: The correct answer is A. A complete prescription should include the medication name (Furosemide), dosage (20 mg), and administration schedule (BID - twice daily). Choice B is missing the dosage of Aspirin, choice C lacks the dosage information for Nitroglycerin, and choice D does not specify the administration schedule for Metoprolol.
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