ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. You are working on a burns unit, and one of your acutely ill patients is exhibiting signs and symptoms of third spacing. Based on this change in status, you should expect the patient to exhibit signs and symptoms of what imbalance?
- A. Metabolic alkalosis
- B. Hypermagnesemia
- C. Hypercalcemia
- D. Hypovolemia
Correct answer: Hypovolemia
Rationale: Third spacing refers to the loss of fluid from the intravascular space into the interstitial or third space, leading to a decrease in circulating blood volume. This condition results in hypovolemia, which is characterized by decreased blood volume. Metabolic alkalosis, hypermagnesemia, and hypercalcemia are not directly associated with third spacing. Metabolic alkalosis is an acid-base imbalance, hypermagnesemia is an excess of magnesium in the blood, and hypercalcemia is an excess of calcium in the blood, none of which are the primary concerns in cases of third spacing.
2. What role do genetic predispositions play in the development of mental disorders?
- A. Genetic predispositions solely determine the development of mental disorders.
- B. Genetic predispositions play a role but are not solely responsible for the development of mental disorders.
- C. Genetic predispositions have no influence on mental disorders.
- D. Genetic predispositions guarantee the development of mental disorders.
Correct answer: B
Rationale: Genetic predispositions are indeed a factor in the development of mental disorders, but they are not the sole determining factor. While genetics can predispose individuals to certain conditions, environmental factors, lifestyle choices, and life experiences also play a significant role. Choice A is incorrect because mental disorders are influenced by a combination of genetic and environmental factors. Choice C is incorrect as genetic predispositions do have an impact on mental health. Choice D is incorrect as genetic predispositions do not guarantee the development of mental disorders, as other factors also contribute to their onset.
3. A nurse is caring for a patient who has just returned from surgery. What is the nurse's priority action?
- A. Monitor the patient's pain level.
- B. Assess the patient's vital signs.
- C. Assess the surgical incision site.
- D. Position the patient in a high Fowler's position.
Correct answer: B
Rationale: The correct answer is B: Assess the patient's vital signs. Assessing vital signs is crucial as it helps to detect any early signs of complications such as bleeding, shock, or changes in oxygenation. Monitoring the patient's pain level (Choice A) is important but assessing vital signs takes precedence. While assessing the surgical incision site (Choice C) is essential, ensuring the patient's physiological stability through vital sign assessment is the priority. Positioning the patient in a high Fowler's position (Choice D) may be necessary for comfort but does not address the immediate need to assess the patient's condition post-surgery.
4. A nurse is caring for a client who has DVT. Which of the following instructions should the nurse include in the plan of care?
- A. Limit the client's fluid intake to 1500 mL per day
- B. Avoid massaging the affected extremity to relieve pain
- C. Avoid applying cold packs to the client's affected extremity
- D. Elevate the client's affected extremity when in bed
Correct answer: D
Rationale: The correct instruction for a client with DVT is to elevate the affected extremity when in bed. Elevation helps reduce swelling by promoting venous return. Limiting fluid intake could lead to dehydration and is not recommended. Massaging the affected extremity can dislodge a clot, leading to serious complications. Applying cold packs can cause vasoconstriction and should be avoided in DVT.
5. A patient with heart failure has gained 5 pounds in the last 3 days. What is the nurse's priority intervention?
- A. Restrict the patient's fluid intake.
- B. Monitor the patient's daily weight.
- C. Administer diuretics as prescribed.
- D. Increase the patient's salt intake to promote fluid balance.
Correct answer: B
Rationale: The correct answer is to monitor the patient's daily weight. In heart failure, sudden weight gain indicates fluid retention, which can worsen the condition. Monitoring daily weight helps in early detection of fluid accumulation, allowing timely intervention. Restricting fluid intake (choice A) may be necessary but is not the priority at this point. Administering diuretics (choice C) should be done based on healthcare provider orders, not the nurse's independent decision. Increasing salt intake (choice D) is contraindicated in heart failure as it can exacerbate fluid retention.
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