HESI LPN
HESI CAT Exam 2022
1. 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.
2. The nurse is caring for a group of clients on a surgical unit. Which client should the nurse assess first?
- A. A client who is two days post knee surgery and describes pain at a “4” on a 1 to 10 scale
- B. A client who is one day post bowel resection with no bowel sounds
- C. A client who is 8 hours post appendectomy with urinary output of 480 ml
- D. A client who was admitted with severe abdominal pain and suddenly has no pain
Correct answer: D
Rationale: The correct answer is D. A sudden absence of pain in a client with severe abdominal pain may indicate a serious condition such as internal bleeding. This sudden change in pain status requires immediate assessment to rule out any life-threatening complications. Choices A, B, and C do not indicate an acute change in the client's condition that would necessitate immediate attention compared to sudden pain relief in a client with severe abdominal pain.
3. Which client requires careful nursing assessment for signs and symptoms of hypomagnesemia?
- A. A young adult client with intractable vomiting from food poisoning
- B. A client who developed hyperparathyroidism in late adolescence
- C. A middle-aged male client in renal failure following an unsuccessful kidney transplant
- D. A female client who is overzealous with her intake of simple carbohydrates
Correct answer: A
Rationale: The correct answer is A. Vomiting can lead to significant loss of magnesium, causing hypomagnesemia. In this scenario, the young adult client with intractable vomiting from food poisoning is at higher risk of developing hypomagnesemia due to the loss of magnesium through vomiting. Choices B, C, and D are less likely to present with hypomagnesemia. Hyperparathyroidism (B) is associated with hypercalcemia, renal failure (C) can lead to hypermagnesemia, and overconsumption of simple carbohydrates (D) is not directly linked to magnesium imbalances.
4. On admission to the Emergency Department, a female client who was diagnosed with bipolar disorder 3 years ago reports that this morning she took a handful of medications and left a suicide note for her family. Which information is most important for the nurse to obtain?
- A. Which family member has the client's suicide note?
- B. When the client last took medications for bipolar disorder?
- C. What medications the client used for the suicide attempt?
- D. Whether the client has ever attempted suicide in the past?
Correct answer: C
Rationale: Identifying the specific medications taken during a suicide attempt is crucial for determining the appropriate treatment and assessing the potential toxicity or interactions. This information helps healthcare providers initiate the necessary interventions promptly. Option A is not as critical as knowing the medications used. Option B focuses on the timing of the last medication intake rather than the specific drugs taken for the overdose. Option D, while relevant, does not provide immediate actionable information compared to identifying the substances involved in the suicide attempt.
5. A client with deep vein thrombosis (DVT) in the left leg is on a heparin protocol. Which intervention is most important for the nurse to include in this client's plan of care?
- A. Observe for bleeding side effects related to heparin therapy.
- B. Assess blood pressure and heart rate at least every 4 hours.
- C. Measure calf girth to evaluate edema in the affected leg.
- D. Encourage mobilization to prevent pulmonary embolism.
Correct answer: A
Rationale: The correct answer is to 'Observe for bleeding side effects related to heparin therapy.' This is the most crucial intervention for a client with deep vein thrombosis (DVT) on a heparin protocol. Heparin, being an anticoagulant, increases the risk of bleeding as a side effect. Therefore, close monitoring for signs of bleeding, such as bruising, petechiae, or blood in stool or urine, is essential to prevent severe complications. While assessing blood pressure and heart rate (Choice B) is important, it is not as critical as monitoring for bleeding. Measuring calf girth (Choice C) may help evaluate edema but is not as vital as observing for bleeding complications. Encouraging mobilization (Choice D) is beneficial for preventing complications like pulmonary embolism, but in this scenario, monitoring for bleeding takes precedence due to the immediate risk associated with anticoagulant therapy.
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