ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A home care nurse prepares to administer intravenous medication to a client. The nurse assesses the site and reviews the clients chart prior to administering the medication: Client: Thomas Jackson DOB: 5/3/1936 Gender: Male January 23 (Today): Right uppe
- A. Notify the health care provider
- B. . Administer the prescribed medication.
- C. Discontinue the PICC
- D. Switch the medication to the oral route
Correct answer: B
Rationale:
2. A nurse is assessing a client who has acute pancreatitis and is at risk for an acid-base imbalance. For which manifestation of this acid-base imbalance should the nurse assess?
- A. Agitation
- B. Kussmaul respirations
- C. Seizures
- D. Positive Chvosteks sign
Correct answer: B
Rationale:
3. The renin and angiotensin systems help to maintain the balance of sodium and water in the body. What other functions do these systems serve?
- A. Regulating hemoglobin levels
- B. Maintaining a healthy blood volume
- C. Releasing platelets when tissues are injured
- D. Lowering blood volumes
Correct answer: B
Rationale: The correct answer is B: Maintaining a healthy blood volume. The renin and angiotensin systems not only help to regulate sodium and water balance in the body but also play a crucial role in maintaining an adequate blood volume. This is essential for normal blood pressure regulation and overall cardiovascular health. Choices A, C, and D are incorrect because hemoglobin levels are primarily regulated by the bone marrow and erythropoietin, platelets are released in response to blood vessel injury by a different mechanism, and the systems do not focus on lowering blood volumes but rather on maintaining them.
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. What is the most important regulator of the amount of sodium in the body?
- A. Kidneys
- B. Small intestine
- C. Large intestine
- D. Skin
Correct answer: A
Rationale: The correct answer is A: Kidneys. The kidneys play a crucial role in regulating the amount of sodium in the body. They achieve this by filtering blood and controlling the excretion or reabsorption of sodium. The small intestine is primarily responsible for nutrient absorption, not sodium regulation. The large intestine is mainly involved in water absorption and waste elimination, not sodium balance. The skin helps regulate body temperature through sweating and does not directly regulate sodium levels.
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