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. A client complains of pain at the IV site. Upon assessment, the nurse notes the site is warm, red, and swollen. What is the most likely cause of these findings?
- A. Phlebitis
- B. Infiltration
- C. Allergic reaction
- D. Fluid overload
Correct answer: A
Rationale: The correct answer is A, Phlebitis. Phlebitis is the inflammation of a vein, often caused by irritation from an IV catheter, resulting in warmth, redness, and swelling at the site. Infiltration (choice B) refers to the leaking of IV fluids into the surrounding tissues, causing swelling and pallor, not redness and warmth like in the scenario described. An allergic reaction (choice C) would present with itching, hives, or anaphylaxis, rather than localized warmth, redness, and swelling. Fluid overload (choice D) typically manifests as generalized edema, shortness of breath, and weight gain, not localized symptoms at the IV site.
4. When counting a client's radial pulse, the nurse notes the pulse is weak and irregular. To record the most accurate heart rate, what should the nurse do?
- A. Recheck the radial pulse in thirty minutes
- B. Palpate the radial pulse for thirty seconds and double the rate
- C. Count the apical pulse rate for sixty seconds
- D. Compare the radial pulse rate bilaterally and record the higher rate
Correct answer: C
Rationale: The correct answer is to count the apical pulse rate for sixty seconds. The apical pulse is more accurate, especially when peripheral pulses are weak or irregular. Counting the apical pulse for a full minute provides a more precise heart rate measurement. Option A is incorrect because waiting for thirty minutes is unnecessary and could delay potential interventions. Option B is incorrect because doubling the radial pulse rate may not provide an accurate representation of the heart rate. Option D is incorrect because comparing radial pulses bilaterally does not give the most accurate heart rate measurement; the apical pulse is preferred in this situation.
5. After delivering a healthy newborn, a client is experiencing postpartum hemorrhage. What initial intervention should the nurse implement?
- A. Administer IV fluids
- B. Perform a uterine massage
- C. Monitor the newborn's vital signs
- D. Notify the healthcare provider
Correct answer: B
Rationale: The correct initial intervention for postpartum hemorrhage is to perform a uterine massage. This action helps the uterus contract, controlling bleeding. Administering IV fluids may be necessary but is not the initial intervention. Monitoring the newborn's vital signs is important but not the priority when managing postpartum hemorrhage. Notifying the healthcare provider can be done after initiating immediate interventions to address the hemorrhage.
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