ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A nurse assesses a client who has a radial artery catheter. Which assessment should the nurse complete first?
- A. . Amount of pressure in fluid container
- B. Date of catheter tubing change
- C. Percent of heparin in infusion container
- D. . Presence of an ulnar pulse
Correct answer: D
Rationale:
2. The nurse assessing skin turgor in an elderly patient should remember that:
- A. Overhydration causes the skin to tent.
- B. Dehydration causes the skin to appear edematous and spongy.
- C. Inelastic skin turgor is a normal part of aging.
- D. Normal skin turgor is moist and boggy.
Correct answer: C
Rationale: Inelastic skin turgor is a normal part of aging. Dehydration, not overhydration, causes inelastic skin with tenting. Overhydration, not dehydration, causes the skin to appear edematous and spongy. Normal skin turgor is dry and firm. Choice A is incorrect because overhydration does not cause the skin to tent; it is dehydration that leads to tenting. Choice B is incorrect because dehydration, not overhydration, causes the skin to appear edematous and spongy. Choice D is incorrect because normal skin turgor is dry and firm, not moist and boggy.
3. You are an emergency-room nurse caring for a trauma patient. Your patient has the following arterial blood gas results: pH 7.26, PaCO2 28, HCO3 11 mEq/L. How would you interpret these results?
- A. Respiratory acidosis with no compensation
- B. Metabolic alkalosis with a compensatory alkalosis
- C. Metabolic acidosis with no compensation
- D. Metabolic acidosis with a compensatory respiratory alkalosis
Correct answer: D
Rationale:
4. A nurse evaluates a clients arterial blood gas values (ABGs): pH 7.30, PaO2 86 mm Hg, PaCO2 55 mm Hg, and HCO3 22 mEq/L. Which intervention should the nurse implement first?
- A. Assess the airway.
- B. Administer prescribed bronchodilators.
- C. Provide oxygen.
- D. Administer prescribed mucolytics
Correct answer: A
Rationale:
5. A patient is taking spironolactone (Aldactone) to control her hypertension. Her serum potassium level is 6 mEq/L. For this patient, the nurse's priority would be to assess her:
- A. Neuromuscular function
- B. Bowel sounds
- C. Respiratory rate
- D. Electrocardiogram (ECG) results
Correct answer: D
Rationale: In a patient with a serum potassium level of 6 mEq/L due to spironolactone use, the nurse's priority is to assess the Electrocardiogram (ECG) results. Hyperkalemia can lead to life-threatening arrhythmias, such as ventricular fibrillation, which can be detected on an ECG. While changes in neuromuscular function, bowel sounds, and respiratory rate can occur with hyperkalemia, the most critical assessment related to the patient's condition would be monitoring the ECG for signs of cardiac complications.
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