ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. 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:
2. Which of the following statements is correct?
- A. People with less body fat have more body water.
- B. Infants have more water per pound than adults.
- C. Females have more body water per pound than males.
- D. Infants have the same water content per pound as adults.
Correct answer: A
Rationale: The correct statement is that people with less body fat have more body water. This is because fat tissue contains less water compared to lean tissue, so individuals with less body fat generally have a higher percentage of body water. Choice B is incorrect as infants actually have more water per pound than adults due to their higher body water content. Choice C is incorrect as males typically have more body water per pound than females. Choice D is incorrect as infants have a higher water content per pound compared to adults.
3. Which negative ion is most abundant in blood plasma?
- A. Bicarbonate
- B. Chloride
- C. Hydroxide
- D. Phosphate
Correct answer: B
Rationale: Chloride (Cl-) is the most abundant anion in blood plasma. It plays a crucial role in maintaining osmotic balance and acid-base homeostasis. Bicarbonate (Choice A) is important for buffering acids in the body but is not the most abundant negative ion in blood plasma. Hydroxide (Choice C) is not typically found in high concentrations in blood plasma. Phosphate (Choice D) is an important anion in the body but is not as abundant as chloride in blood plasma.
4. . A nurse assesses a client with diabetes mellitus who is admitted with an acid-base imbalance. The clients arterial blood gas values are pH 7.36, PaO2 98 mm Hg, PaCO2 33 mm Hg, and HCO3 18 mEq/L. Which manifestation should the nurse identify as an exam
- A. Increased rate and depth of respirations
- B. ncreased urinary output
- C. Increased thirst and hunger
- D. ncreased release of acids from the kidneys
Correct answer: A
Rationale:
5. The community health nurse is performing a home visit to an 84-year-old woman recovering from hip surgery. The nurse notes that the woman seems uncharacteristically confused and has dry mucous membranes. When asked about her fluid intake, the patient states, I stop drinking water early in the day because it is just too difficult to get up during the night to go to the bathroom. What would be the nurses best response?
- A. I will need to have your medications adjusted so you will need to be readmitted to the hospital for a complete workup
- B. Limiting your fluids can create imbalances in your body that can result in confusion. Maybe we need to adjust the timing of your fluids.
- C. It is normal to be a little confused following surgery, and it is safe not to urinate at night.
- D. If you build up too much urine in your bladder, it can cause you to get confused, especially when your body is under stress.
Correct answer: B
Rationale:
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