HESI LPN
HESI CAT Exam Test Bank
1. A client who received multiple antihypertensive medications experiences syncope due to a drop in blood pressure to 70/40. What is the rationale for the nurse’s decision to hold the client’s scheduled antihypertensive medication?
- A. Increased urinary clearance of the multiple medications has led to diuresis and lowered the blood pressure.
- B. The antagonistic interaction among the various blood pressure medications has reduced their effectiveness.
- C. The additive effect of multiple medications has caused the blood pressure to drop too low.
- D. The synergistic effect of the multiple medications has resulted in drug toxicity and resulting hypotension.
Correct answer: C
Rationale: The correct answer is C. When a client experiences syncope due to a significant drop in blood pressure after receiving multiple antihypertensive medications, the additive effect of these medications can cause the blood pressure to drop excessively. This additive effect can lead to hypotension, which is why the nurse decided to hold the client's scheduled antihypertensive medication. Choices A, B, and D provide incorrect rationales. Choice A mentions diuresis, which is not directly related to the drop in blood pressure due to additive medication effects. Choice B refers to an antagonistic interaction reducing effectiveness, which is not applicable in this scenario. Choice D talks about a synergistic effect leading to drug toxicity, which is not the cause of the sudden drop in blood pressure observed in the client.
2. A male client with hypercholesterolemia wants to change his diet to help reduce his cholesterol levels. Which breakfast items should the nurse encourage the client to eat? (Select all that apply)
- A. Sausage patties and eggs
- B. Whole wheat toast and jam
- C. Bagels and cream cheese
- D. Blackberries and oatmeal
Correct answer: B
Rationale: The correct choices are whole wheat toast and jam (B) and blackberries and oatmeal (D). Whole wheat toast and blackberries are high in fiber, which can help lower cholesterol levels. Sausage patties and eggs (A) are high in saturated fats that can raise cholesterol levels. Bagels and cream cheese (C) are not as beneficial for cholesterol control compared to high-fiber options like whole wheat toast and blackberries.
3. When caring for a client with Cushing syndrome, which serum laboratory value is most important for the nurse to monitor?
- A. Lactate
- B. Glucose
- C. Hemoglobin
- D. Creatinine
Correct answer: B
Rationale: When caring for a client with Cushing syndrome, monitoring glucose levels is crucial as Cushing syndrome often leads to hyperglycemia. Elevated glucose levels are a common manifestation of Cushing syndrome due to increased cortisol levels. Monitoring glucose helps in assessing and managing the client's condition effectively. Lactate levels are not typically affected by Cushing syndrome. Hemoglobin and creatinine levels are important for other conditions like anemia and kidney function, but they are not the priority in Cushing syndrome.
4. The charge nurse of a cardiac telemetry unit is assigning client care to a registered nurse (RN) and a practical nurse (PN). Which client should be assigned to the RN?
- A. One day after a permanent pacemaker insertion, a client's telemetry monitor shows a pacer rhythm.
- B. Two hours after undergoing cardioversion, a client's telemetry monitor shows a normal sinus rhythm.
- C. A client started on carvedilol the previous day for heart failure has controlled atrial fibrillation.
- D. Four hours after admission, a client with syncope shows complete heart block on the telemetry monitor.
Correct answer: D
Rationale: The correct answer is D because complete heart block is a critical condition that requires immediate assessment and management by a registered nurse (RN). In complete heart block, there is a significant conduction disturbance that can lead to serious complications. The RN is better equipped to handle such complex and potentially life-threatening situations. Choices A, B, and C involve less critical conditions that can be managed by a practical nurse (PN) under the supervision of the RN. Therefore, assigning the client with complete heart block to the RN ensures prompt and appropriate intervention.
5. When caring for a client with acute respiratory distress syndrome (ARDS), why does the nurse elevate the head of the bed 30 degrees?
- A. To reduce abdominal pressure on the diaphragm
- B. To promote retraction of the intercostal accessory muscles of respiration
- C. To promote bronchodilation and effective airway clearance
- D. To decrease pressure on the medullary center which stimulates breathing
Correct answer: A
Rationale: Elevating the head of the bed to 30 degrees is done to reduce abdominal pressure on the diaphragm, aiding in lung expansion and oxygenation. This position helps improve respiratory mechanics by allowing the diaphragm to move more effectively. Choice B is incorrect as elevating the head of the bed does not directly promote retraction of the intercostal accessory muscles of respiration. Choice C is incorrect because although elevating the head of the bed can assist with airway clearance, its primary purpose in ARDS is to decrease pressure on the diaphragm. Choice D is incorrect because reducing pressure on the medullary center is not the main goal of elevating the head of the bed; the focus is on enhancing lung function and oxygen exchange.
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