ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. The nurse in the medical ICU is caring for a patient who is in respiratory acidosis due to inadequate ventilation. What diagnosis could the patient have that could cause inadequate ventilation?
- A. Endocarditis
- B. Multiple myeloma
- C. Guillain-Barr syndrome
- D. Overdose of amphetamines
Correct answer: C
Rationale:
2. A nurse is assessing a client who has an electrolyte imbalance related to renal failure. For which potential complications of this electrolyte imbalance should the nurse assess? (Select all that do mot apply.)
- A. Electrocardiogram changes
- B. Slow, shallow respirations
- C. Paralytic ileus
- D. Skeletal muscle weakness
Correct answer: B
Rationale:
3. What percentage of body water can be as high as in a newborn?
- A. 80%.
- B. 70%.
- C. 60%.
- D. 90%.
Correct answer: A
Rationale: The correct answer is A: 80%. Newborns can have a body water content as high as 80% due to their higher total body water compared to adults. Choice B (70%) is incorrect because newborns typically have a higher body water percentage. Choice C (60%) is also incorrect as it underestimates the body water content in newborns. Choice D (90%) is incorrect as it overestimates the body water percentage in newborns.
4. . A 73-year-old man comes into the emergency department (ED) by ambulance after slipping on a small carpet in his home. The patient fell on his hip with a resultant fracture. He is alert and oriented; his pupils are equal and reactive to light and accommodation. His heart rate is elevated, he is anxious and thirsty, a Foley catheter is placed, and 40 mL of urine is present. What is the nurses most likely explanation for the low urine output?
- A. The man urinated prior to his arrival to the ED and will probably not need to have the Foley catheter kept in place.
- B. The man likely has a traumatic brain injury, lacks antidiuretic hormone (ADH), and needs vasopressin.
- C. The man is experiencing symptoms of heart failure and is releasing atrial natriuretic peptide that results in decreased urine output.
- D. The man is having a sympathetic reaction, which has stimulated the reninangiotensinaldosterone system that results in diminished urine output.
Correct answer: D
Rationale:
5. Place a washcloth between the skin and tourniquet
- A. Provide a bed bath instead of letting the client take a shower
- B. Use sterile technique when changing the dressing.
- C. Disconnect the intravenous fluid tubing prior to the clients bath.
- D. Use a plastic bag to cover the extremity with the device
Correct answer: D
Rationale:
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