ATI RN
ATI Fluid and Electrolytes
1. What is the fluid that surrounds the cells called?
- A. plasma
- B. interstitial fluid
- C. intracellular fluid
- D. edema
Correct answer: B
Rationale: The correct answer is interstitial fluid. Interstitial fluid is the fluid that surrounds and fills the spaces between cells, facilitating nutrient and waste exchange. Plasma, referred to in choice A, is the liquid part of blood. Choice C, intracellular fluid, is the fluid inside cells. Choice D, edema, is an abnormal accumulation of fluid in interstitial spaces, causing swelling.
2. Which of the following lab values indicates a patient on warfarin is at a therapeutic level?
- A. INR of 1.1
- B. PT of 12 seconds
- C. INR of 2.5
- D. Platelet count of 150,000
Correct answer: C
Rationale: An INR of 2.5 indicates a therapeutic level for a patient on warfarin. The INR (International Normalized Ratio) is the most accurate way to monitor and adjust warfarin doses. An INR of 1.1 (Choice A) is below the therapeutic range, indicating a need for an increased dose. PT (Prothrombin Time) of 12 seconds (Choice B) is not specific for warfarin therapy monitoring. Platelet count (Choice D) is not directly related to monitoring warfarin therapy.
3. A 13-year-old boy comes to the school nurse complaining of sudden and severe scrotal pain. He denies any trauma to the scrotum. What is the most appropriate nursing action?
- A. Refer him for immediate medical evaluation
- B. Administer analgesics and recommend scrotal support.
- C. Apply an ice bag and observe for increasing pain.
- D. Reassure the adolescent that occasional pain is common with the changes of puberty.
Correct answer: A
Rationale: Sudden and severe scrotal pain in an adolescent male is a medical emergency and may indicate testicular torsion, which requires immediate evaluation and intervention to prevent testicular loss.
4. A client with cancer is about to receive low-dose brachytherapy via a vaginal implant. What intervention should be included in the care plan?
- A. Remove vaginal packing.
- B. Insert an indwelling urinary catheter.
- C. Ambulate the client four times daily.
- D. Keep the client NPO until therapy is complete.
Correct answer: B
Rationale: The correct intervention that should be included in the care plan for a client about to receive low-dose brachytherapy via a vaginal implant is to insert an indwelling urinary catheter. This is crucial to prevent bladder distention during brachytherapy, ensuring the treatment's effectiveness and the client's comfort. Removing vaginal packing (Choice A) may not be necessary or appropriate in this situation. Ambulating the client four times daily (Choice C) is a good nursing intervention for general patient care but is not specifically related to brachytherapy via a vaginal implant. Keeping the client NPO until therapy is complete (Choice D) is not necessary unless specifically indicated due to the treatment's nature or the client's condition.
5. Which of the following is a chronic lung disease that results in the gradual destruction of the alveoli, causing difficulty breathing and reduced oxygen exchange?
- A. Emphysema
- B. Bronchitis
- C. Pulmonary hypertension
- D. Sarcoidosis
Correct answer: A
Rationale: Emphysema is the correct answer as it is a chronic lung disease characterized by the gradual destruction of the alveoli, which are essential for oxygen exchange. This destruction leads to difficulty breathing and reduced oxygen levels in the blood. Bronchitis is an inflammation of the bronchial tubes, not specifically involving alveoli destruction. Pulmonary hypertension is a condition of high blood pressure in the arteries of the lungs, not directly related to alveoli destruction. Sarcoidosis is a disease characterized by the growth of tiny collections of inflammatory cells in different parts of the body, including the lungs, but it does not primarily involve the destruction of alveoli.
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