ATI RN
Fluid and Electrolytes ATI
1. The nurse is caring for a postthyroidectomy patient at risk for hypocalcemia. What action should the nurse take when assessing for hypocalcemia?
- A. Monitor laboratory values daily for an elevated thyroid-stimulating hormone.
- B. Observe for swelling of the neck, tracheal deviation, and severe pain.
- C. Evaluate the quality of the patient's voice postoperatively, noting any drastic changes.
- D. Observe for muscle twitching and numbness or tingling of the lips, fingers, and toes.
Correct answer: D
Rationale: Muscle twitching and numbness or tingling of the lips, fingers, and toes are signs of hyperirritability of the nervous system due to hypocalcemia. The other options describe complications the nurse should also be observing for; however, tetany and neurologic alterations are primary indications of hypocalcemia. Monitoring for an elevated thyroid-stimulating hormone (choice A) is not relevant in assessing for hypocalcemia. Observing for swelling of the neck, tracheal deviation, and severe pain (choice B) are more related to airway compromise. Evaluating the quality of the patient's voice postoperatively (choice C) is important but not a primary sign of hypocalcemia.
2. While assessing a patient's peripheral IV site, you note edema around the insertion site. How should you document this complication related to IV therapy?
- A. Air emboli
- B. Phlebitis
- C. Infiltration
- D. Fluid overload
Correct answer: C
Rationale: Infiltration is the administration of a nonvesicant solution or medication into the surrounding tissue, typically due to the dislodgement or perforation of the vein wall by the IV cannula. It is characterized by edema around the insertion site, leakage of IV fluid, discomfort, coolness, and a decrease in flow rate. In this scenario, the presence of edema indicates infiltration, not air emboli, phlebitis, or fluid overload. Air emboli refer to air bubbles in the bloodstream, phlebitis is inflammation of the vein, and fluid overload is an excessive volume of fluid in the circulatory system.
3. What electrolyte value should be monitored when a patient is receiving a loop diuretic?
- A. Calcium levels
- B. Phosphorus levels
- C. Potassium levels
- D. Magnesium levels
Correct answer: C
Rationale: When a patient is receiving a loop diuretic like furosemide (Lasix), potassium levels should be monitored closely. Loop diuretics act on the ascending loop of Henle to inhibit the reabsorption of sodium and water, leading to potassium loss. Monitoring potassium levels is crucial to prevent hypokalemia, which can result in serious complications such as cardiac arrhythmias. Calcium levels (Choice A), phosphorus levels (Choice B), and magnesium levels (Choice D) are not typically affected directly by loop diuretics and do not require routine monitoring in this context.
4. The healthcare professional working in the PACU is aware that which of the following procedures may contribute to extracellular losses?
- A. Removal of an ingrown toenail
- B. Tooth extraction
- C. Abdominal surgery
- D. Cataract surgery
Correct answer: C
Rationale: Fluid loss from the extracellular compartment can be caused by abdominal surgery as it involves opening the abdominal cavity, potentially leading to significant fluid losses. Choices A, B, and D do not typically result in substantial extracellular losses compared to abdominal surgery.
5. You are the nurse caring for a patient who is to receive IV daunorubicin, a chemotherapeutic agent. You start the infusion and check the insertion site as per protocol. During your most recent check, you note that the IV has infiltrated so you stop the infusion. What is your main concern with this infiltration?
- A. Extravasation of the medication
- B. Discomfort to the patient
- C. Blanching at the site
- D. Hypersensitivity reaction to the medication
Correct answer: A
Rationale:
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