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. A patient admitted with a gastrointestinal bleed and anemia is receiving a blood transfusion. Based on the patient's hypotensive blood pressure, the nurse anticipates an order for IV fluids from the physician. Which of the following IV solutions may be administered with blood products?
- A. D5 and 0.45% Normal Saline
 - B. Lactated Ringer's
 - C. 5% dextrose in water
 - D. 0.9% NaCl
 
Correct answer: D
Rationale: The correct answer is D: 0.9% NaCl. The only IV solution that can be administered with blood products is normal saline (0.9% NaCl). This solution is compatible with most blood products and is commonly used during transfusions to maintain hemodynamic stability. Choices A, B, and C are incorrect. Choice A, D5 and 0.45% Normal Saline, contains dextrose and is not recommended to be given simultaneously with blood products. Choice B, Lactated Ringer's, contains calcium, which can cause coagulation and should not be mixed with blood. Choice C, 5% dextrose in water, is hypotonic and not suitable to be administered with blood products.
3. A nurse is caring for a client who has just experienced a 90-second tonic-clonic seizure. The clients arterial blood gas values are pH 6.88, PaO2 50 mm Hg, PaCO2 60 mm Hg, and HCO3 22 mEq/L. Which action should the nurse take first?
- A. . Apply oxygen by mask or nasal cannula
 - B. Apply a paper bag over the clients nose and mouth.
 - C. Administer 50 mL of sodium bicarbonate intravenously.
 - D. Administer 50 mL of 20% glucose and 20 units of regular insulin.
 
Correct answer: A
Rationale:
4. . You are caring for a patient who has a diagnosis of syndrome of inappropriate antidiuretic hormone secretion (SIADH). Your patients plan of care includes assessment of specific gravity every 4 hours. The results of this test will allow the nurse to as
- A. Nutritional status
 - B. Potassium balance
 - C. Calcium balance
 - D. Fluid volume status
 
Correct answer: D
Rationale:
5. What is the main force that pushes fluid in blood capillaries?
- A. Blood pressure.
 - B. Sodium in the blood plasma.
 - C. Sodium in the interstitial fluid.
 - D. Protein in the blood plasma.
 
Correct answer: A
Rationale: The correct answer is A, blood pressure. Blood pressure is the primary force that pushes fluid out of the capillaries into the surrounding tissues. This pressure difference is essential for the exchange of nutrients, gases, and waste products between the blood and tissues. Choices B, C, and D are incorrect as they do not represent the primary force responsible for pushing fluid in blood capillaries.
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