ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. The nurse caring for a patient post colon resection is assessing the patient on the second postoperative day. The nasogastric tube (NG) remains patent and continues at low intermittent wall suction. The IV is patent and infusing at 125 mL/hr. The patient reports pain at the incision site rated at a 3 on a 0-to-10 rating scale. During your initial shift assessment, the patient complains of cramps in her legs and a tingling sensation in her feet. Your assessment indicates decreased deep tendon reflexes (DTRs) and you suspect the patient has hypokalemia. What other sign or symptom would you expect this patient to exhibit
- A. Diarrhea
- B. Dilute urine
- C. Increased muscle tone
- D. Joint pain
Correct answer: B
Rationale:
2. Retention of electrolytes (especially sodium) in the interstitial fluid can result from:
- A. decreased aldosterone secretion.
- B. increased ADH secretion.
- C. increased aldosterone secretion.
- D. decreased ADH secretion.
Correct answer: C
Rationale: The correct answer is C: increased aldosterone secretion. Aldosterone, a hormone produced by the adrenal glands, increases sodium reabsorption in the kidneys, leading to retention of sodium and water in the interstitial fluid. Increased aldosterone secretion enhances the reabsorption of sodium, thereby increasing its retention. Choice A is incorrect because decreased aldosterone secretion would lead to less sodium reabsorption and increased excretion. Choice B is incorrect because increased ADH secretion primarily affects water reabsorption rather than sodium. Choice D is incorrect because decreased ADH secretion would lead to increased water excretion but not necessarily affect sodium retention.
3. While assessing a clients peripheral IV site, the nurse observes a streak of red along the vein path and palpates a 4-cm venous cord. How should the nurse document this finding?
- A. Grade 3 phlebitis at IV site
- B. infection at IV site
- C. Thrombosed area at IV site
- D. infiltration at IV site
Correct answer: A
Rationale:
4. When selecting a site on the hand or arm for insertion of an IV catheter, the nurse should:
- A. Choose a proximal site.
- B. Choose a distal site.
- C. Have the patient hold their arm in a dependent position.
- D. Leave the tourniquet on for no longer than 2 minutes.
Correct answer: B
Rationale: When selecting a site for insertion of an IV catheter, the nurse should choose a distal site, not a proximal site. Opting for a distal site ensures that upper veins remain available for future cannulations. Instructing the patient to hold their arm in a dependent position can enhance blood flow, aiding in the procedure. It is crucial never to leave a tourniquet on for more than 2 minutes as prolonged restriction can lead to complications. Choice A is incorrect because a proximal site is not preferred for IV insertion. Choice C is incorrect as having the patient hold their arm over their head is not necessary and may impede proper blood flow. Choice D is incorrect as leaving the tourniquet on for at least 5 minutes is excessive and can be harmful.
5. The nurse is caring for a patient in metabolic alkalosis. The patient has an NG tube to low intermittent suction for a diagnosis of bowel obstruction. What drug would the nurse expect to find on the medication orders?
- A. Cimetidine
- B. Maalox
- C. Potassium chloride elixir
- D. ) Furosemide
Correct answer: A
Rationale:
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