ATI RN
ATI Anatomy and Physiology
1. Which part of the nephron is closest to the collecting duct?
- A. Distal convoluted tubule (DCT)
- B. Bowman's Capsule
- C. Afferent Arteriole
- D. Proximal Convoluted Tubule (PCT)
Correct answer: Distal convoluted tubule (DCT)
Rationale: The correct answer is the Distal convoluted tubule (DCT). The DCT is the part of the nephron closest to the collecting duct, where the final adjustments to electrolyte and fluid balance are made. Bowman's Capsule is located at the beginning of the nephron, where filtration of blood occurs. The Afferent Arteriole brings blood to the glomerulus for filtration. The Proximal Convoluted Tubule (PCT) is situated after the Bowman's Capsule and is not the part closest to the collecting duct.
2. Rectal temperatures are indicated in which situation?
- A. In the newborn period
- B. Whenever accuracy is essential
- C. Rectal temperatures are never indicated
- D. When rapid temperature changes are occurring
Correct answer: B
Rationale: Rectal temperatures provide the most accurate measurement of core body temperature and are therefore indicated when accuracy is essential.
3. Is the parietal pericardium attached to the surface of the heart?
- A. True
- B. False
- C. Not Sure
- D. None of the above
Correct answer: True
Rationale: The parietal pericardium is a tough, fibrous outer layer that is attached to the diaphragm and the sternum but not directly to the surface of the heart. It forms a sac around the heart known as the pericardial sac. Therefore, the statement that the parietal pericardium is attached to the surface of the heart is false.
4. A nurse is planning care for a client who is postoperative following a laminectomy. Which of the following interventions should the nurse include in the plan of care?
- A. Elevate the client's legs while in bed.
- B. Reposition the client every 2 hours.
- C. Maintain bed rest for the first 24 hours postoperatively.
- D. Ambulate the client on the first postoperative day.
Correct answer: D
Rationale: Ambulating the client on the first postoperative day is crucial to prevent complications like deep vein thrombosis and aid in the recovery process. Elevating the legs while in bed can help with circulation but is not as effective in preventing complications related to immobility post-surgery. Repositioning every 2 hours is important for preventing pressure ulcers but does not directly address postoperative care. Maintaining bed rest for the first 24 hours postoperatively can increase the risk of complications associated with immobility, making early ambulation a more appropriate intervention.
5. Unlicensed assistive personnel (UAP) is assisting a client in traction. Which of these actions requires immediate intervention?
- A. The unlicensed assistive personnel carefully lower the traction weights to hang freely
- B. The unlicensed assistive personnel provides small pillows to cushion the unaffected extremities
- C. The UAP carefully empties the indwelling catheter bag
- D. The UAP shows the client how to use the call light
Correct answer: A
Rationale: The correct answer is A because traction weights should hang freely to maintain their effectiveness. Choice B is incorrect because providing pillows to cushion unaffected extremities is appropriate. Choice C is also incorrect as emptying the catheter bag is a routine nursing task. Choice D is incorrect as teaching the client to use the call light promotes client safety.
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