ATI RN
Fluid and Electrolytes ATI
1. Third spacing occurs when fluid moves out of the intravascular space but not into the intracellular space. Based on this fluid shift, the nurse will expect the patient to demonstrate:
- A. Hypertension
- B. Bradycardia
- C. Hypervolemia
- D. Hypovolemia
Correct answer: D
Rationale: In the scenario of third-spacing fluid shift, where fluid moves out of the intravascular space but not into the intracellular space, the patient is expected to demonstrate hypovolemia. Hypertension (Choice A) is unlikely as hypovolemia typically leads to decreased blood pressure. Bradycardia (Choice B) is not a common manifestation of hypovolemia, as the body often tries to compensate by increasing heart rate. Hypervolemia (Choice C) indicates an excess of fluid, which is the opposite of what occurs in third spacing.
2. A nurse teaches a client who is prescribed a central vascular access device. Which statement should the nurse include in this clients teaching?
- A. You will need to wear a sling on your arm while the device is in place
- B. There is no risk of infection because sterile technique will be used during insertion.
- C. . Ask all providers to vigorously clean the connections prior to accessing the device.
- D. You will not be able to take a bath with this vascular access device.
Correct answer: C
Rationale:
3. 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.
4. 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:
5. A nurse assesses a client who is admitted with an acid-base imbalance. The clients arterial blood gas values are pH 7.32, PaO2 85 mm Hg, PaCO2 34 mm Hg, and HCO3 16 mEq/L. What action should the nurse take next?
- A. Assess clients rate, rhythm, and depth of respiration.
- B. Measure the clients pulse and blood pressure.
- C. Document the findings and continue to monitor.
- D. Notify the physician as soon as possible.
Correct answer: A
Rationale:
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