HESI LPN
Fundamentals HESI
1. A client has a new prescription for nitroglycerin sublingual tablets. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Place the tablet under your tongue and let it dissolve completely.
- C. Swallow the tablet whole with a glass of water.
- D. Chew the tablet for faster relief.
Correct answer: B
Rationale: The correct instruction for a client prescribed nitroglycerin sublingual tablets is to place the tablet under the tongue and let it dissolve completely. This route of administration allows for rapid absorption of the medication through the oral mucosa, providing quick relief for angina symptoms. Option A, taking the medication with food, is incorrect as nitroglycerin should be taken sublingually, not with food. Option C, swallowing the tablet whole with water, is incorrect as sublingual tablets should not be swallowed whole. Option D, chewing the tablet for faster relief, is also incorrect as chewing the tablet can lead to rapid absorption and potential adverse effects rather than a controlled release for angina relief.
2. When changing a client's colostomy pouch and noticing peristomal skin irritation, which of the following actions should the nurse take?
- A. Change the pouch as needed based on individual requirements.
- B. Apply the pouch only when the skin barrier is completely dry.
- C. Pat the peristomal skin dry after cleaning.
- D. Ensure the pouch is 0.32 cm (1/8 in) larger than the stoma.
Correct answer: D
Rationale: When a nurse observes peristomal skin irritation while changing a client's colostomy pouch, it is crucial to ensure that the pouch is slightly larger (0.32 cm or 1/8 inch) than the stoma. This extra space helps prevent the pouch from rubbing against the stoma and causing further irritation. Option A is correct because colostomy pouches should be changed based on individual needs, not necessarily every 24 hours. Option B is incorrect because applying the pouch only when the skin barrier is completely dry ensures better adhesion. Option C is incorrect as patting the peristomal skin dry after cleaning is more gentle and less likely to cause irritation compared to rubbing.
3. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
4. A healthcare provider is assessing a client with a diagnosis of acute pancreatitis. Which laboratory value would be most concerning?
- A. Serum amylase of 200 U/L
- B. Serum lipase of 250 U/L
- C. Blood glucose of 200 mg/dL
- D. Serum calcium of 7.5 mg/dL
Correct answer: D
Rationale: In acute pancreatitis, hypocalcemia (low serum calcium) is a critical finding that is associated with a poor prognosis and requires immediate attention. Serum amylase and lipase are typically elevated in acute pancreatitis due to pancreatic inflammation, but they are not indicators of severity. Blood glucose levels may be elevated due to stress or underlying conditions but are not directly related to the severity of acute pancreatitis. Therefore, the most concerning value in this scenario is the low serum calcium level, which can have significant implications for the client's prognosis.
5. Upon admission to the hospital, a client presents with decreased circulation in the left leg. What is the most important initial nursing action during the assessment?
- A. Assess the client's mobility
- B. Evaluate the pedal pulses
- C. Monitor skin temperature
- D. Check for swelling
Correct answer: B
Rationale: When a client is admitted with decreased circulation in the left leg, the most critical initial nursing action is to evaluate the pedal pulses. Pedal pulses provide essential information about the circulation status in the affected leg. Assessing the client's mobility (Choice A) is important but not as crucial as evaluating pedal pulses in this scenario. Monitoring skin temperature (Choice C) and checking for swelling (Choice D) are also relevant, but they are secondary to evaluating pedal pulses since the latter directly assesses the circulation in the affected limb.
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