HESI LPN
Adult Health 2 Final Exam
1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which laboratory finding is most indicative of this condition?
- A. Serum glucose of 180 mg/dL
- B. Blood pH of 7.30
- C. Positive urine ketones
- D. Serum bicarbonate of 25 mEq/L
Correct answer: C
Rationale: The correct answer is C: Positive urine ketones. In diabetic ketoacidosis (DKA), the body breaks down fat for energy due to a lack of insulin, leading to ketone production. Positive urine ketones are a hallmark laboratory finding in DKA as they directly reflect the presence of ketosis. Choice A, serum glucose of 180 mg/dL, may be elevated in DKA, but it is not specific to this condition. Choice B, blood pH of 7.30, often shows acidosis in DKA, but urine ketones are more specific to the presence of ketosis. Choice D, serum bicarbonate of 25 mEq/L, would typically be low in DKA due to acidosis rather than elevated.
2. The nurse notes that a postoperative client's wound site is red and slightly swollen. What is the most appropriate action?
- A. Apply an ice pack
- B. Document the findings and monitor
- C. Notify the surgeon
- D. Clean the wound with sterile saline
Correct answer: C
Rationale: The correct answer is to notify the surgeon. Redness and swelling at a wound site can indicate an infection, which may require medical intervention. Applying an ice pack (choice A) is not appropriate without further assessment. While documenting the findings and monitoring (choice B) is important, it should be accompanied by notifying the surgeon for further evaluation. Cleaning the wound with sterile saline (choice D) may not be sufficient if an infection is present, so immediate communication with the surgeon is crucial.
3. After placing a client at 26-weeks gestation in the lithotomy position, the client complains of dizziness and becomes pale and diaphoretic. What action should the nurse implement?
- A. Instruct the client to take deep breaths.
- B. Place a wedge under the client's hip.
- C. Place the client in the Trendelenburg position.
- D. Remove the client's legs from the stirrups.
Correct answer: B
Rationale: Placing a wedge under the client's hip is the correct action in this scenario. This helps relieve the pressure on the vena cava, which can become compressed in the lithotomy position during pregnancy, improving circulation and reducing symptoms like dizziness and pallor. Instructing the client to take deep breaths (Choice A) may not address the underlying cause of the symptoms. Placing the client in the Trendelenburg position (Choice C) would worsen the situation by further compressing the vena cava. Removing the client's legs from the stirrups (Choice D) may provide temporary relief but does not address the root cause of the issue.
4. A client with a diagnosis of hypertension is prescribed a thiazide diuretic. Which potential side effect should the nurse monitor for?
- A. Hyperkalemia
- B. Hypernatremia
- C. Hypokalemia
- D. Hypoglycemia
Correct answer: C
Rationale: The correct answer is C: 'Hypokalemia.' Thiazide diuretics commonly cause potassium loss, which can lead to hypokalemia. Monitoring potassium levels is essential when a client is taking thiazide diuretics to prevent complications such as cardiac dysrhythmias. Choices A, B, and D are incorrect. Hyperkalemia (choice A) is an elevated level of potassium, which is not typically associated with thiazide diuretics. Hypernatremia (choice B) is an elevated level of sodium, and hypoglycemia (choice D) is low blood sugar, neither of which are directly linked to thiazide diuretic use.
5. A client with a history of seizure disorder who is receiving phenytoin (Dilantin) is being discharged. Which instruction should the nurse provide?
- A. Take the medication at bedtime.
- B. Monitor drug levels regularly.
- C. Avoid alcohol while taking this medication.
- D. Take the medication at the same time every day.
Correct answer: B
Rationale: The correct answer is to instruct the client to monitor drug levels regularly. This is crucial for phenytoin (Dilantin) to ensure that the medication levels are within the therapeutic range and to prevent toxicity. Choice A, taking the medication at bedtime, is not specifically required for phenytoin administration. Choice C, avoiding alcohol, is generally a good practice with medications but is not as critical as monitoring drug levels for phenytoin. Choice D, taking the medication at the same time every day, is important for consistency but does not address the specific monitoring needs of phenytoin.
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