HESI LPN
Adult Health 2 Exam 1
1. What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.
2. The client with high blood pressure is being taught by the nurse to avoid adding salt during cooking. What effect does sodium have on blood pressure?
- A. It decreases the viscosity of blood
- B. It leads to increased fluid retention
- C. It causes vasoconstriction of the blood vessels
- D. It enhances the excretion of potassium
Correct answer: C
Rationale: The correct answer is C: 'It causes vasoconstriction of the blood vessels.' Sodium can lead to vasoconstriction, which narrows the blood vessels, increasing resistance to blood flow and subsequently raising blood pressure. Choices A, B, and D are incorrect. Sodium does not decrease blood viscosity, but it can lead to fluid retention, which increases blood volume and pressure. It does not enhance the excretion of potassium; instead, high sodium intake can lead to potassium excretion by the kidneys.
3. The nurse is caring for a client with a diagnosis of major depressive disorder who has been prescribed fluoxetine (Prozac). What is the most important teaching point?
- A. Take the medication with or without food.
- B. Report any increase in suicidal thoughts.
- C. Avoid foods high in tyramine.
- D. Expect improvement within 24 hours.
Correct answer: B
Rationale: The correct teaching point is to instruct the client to report any increase in suicidal thoughts. This is crucial because SSRIs like fluoxetine can initially increase suicidal ideation, especially at the beginning of treatment. Choice A is corrected to emphasize that fluoxetine can be taken with or without food. Choice C is unrelated as it pertains more to MAOIs than SSRIs like fluoxetine. Choice D is inaccurate as antidepressants like fluoxetine may take weeks to show significant improvement in symptoms, not within 24 hours.
4. A client with a history of hypertension is prescribed hydrochlorothiazide (HCTZ). Which adverse effect should the nurse monitor for?
- A. Hyperkalemia
- B. Hyponatremia
- C. Bradycardia
- D. Hyperglycemia
Correct answer: B
Rationale: The correct answer is 'B. Hyponatremia.' Hydrochlorothiazide can lead to electrolyte imbalances, such as hyponatremia, due to its diuretic effect. This potential adverse effect should be closely monitored in patients taking HCTZ. Choice A, hyperkalemia, is less likely to occur with HCTZ as it tends to cause hypokalemia. Choice C, bradycardia, is not a common adverse effect of HCTZ. Choice D, hyperglycemia, is also less commonly associated with HCTZ use compared to hyponatremia.
5. The client with chronic kidney disease (CKD) is being educated about dietary modifications. Which dietary restriction should the nurse emphasize the most?
- A. Limit intake of high-fiber foods
- B. Restrict protein intake
- C. Avoid dairy products
- D. Increase fluid intake
Correct answer: B
Rationale: The most crucial dietary restriction to emphasize for a client with chronic kidney disease (CKD) is to restrict protein intake. By restricting protein intake, the workload on the kidneys is reduced, which helps slow the progression of CKD. While high-fiber foods are generally beneficial, they may need to be limited in some individuals with CKD due to potassium concerns, making choice A less critical. Avoiding dairy products may be necessary in some cases to control phosphorus levels, but it is not as vital as restricting protein intake. Increasing fluid intake is essential for kidney health, but it is not the most critical dietary modification for clients with CKD.
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