HESI LPN
Medical Surgical HESI 2023
1. A client with deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin?
- A. Complete blood count (CBC)
- B. Activated partial thromboplastin time (aPTT)
- C. Prothrombin time (PT)
- D. International normalized ratio (INR)
Correct answer: B
Rationale: The correct answer is B: Activated partial thromboplastin time (aPTT). This test is used to monitor the effectiveness of heparin therapy. A complete blood count (CBC) (choice A) is not specific for monitoring heparin therapy. Prothrombin time (PT) (choice C) and International normalized ratio (INR) (choice D) are more commonly used to monitor warfarin therapy, not heparin.
2. When is the best time to administer pancreatic enzyme replacement?
- A. Before meals and snacks
- B. Before bedtime
- C. Early in the morning
- D. After meals and snacks
Correct answer: A
Rationale: The correct answer is to administer pancreatic enzyme replacement before meals and snacks. This timing is crucial as it allows the enzymes to assist in the digestion of carbohydrates, fats, and proteins that are consumed during the meals. Administering the replacement after meals and snacks would not be effective as the enzymes need to be present in the digestive system when food is consumed. Options B and C are incorrect as they do not align with the optimal timing for pancreatic enzyme replacement administration.
3. A teenage girl has been placed in a brace for the treatment of scoliosis, the most common skeletal deformity of adolescence. The family asks what they can do to be more supportive. What suggestion from the nurse is the most appropriate?
- A. Enrolling her in a health club
- B. Taking her to the mall in a wheelchair
- C. Purchasing clothes to disguise the brace
- D. Spending a majority of their time with her
Correct answer: C
Rationale: The most appropriate suggestion from the nurse is to recommend purchasing clothes to disguise the brace. Adolescents with scoliosis often have body image concerns and wish to fit in with their peers. By providing clothes that help conceal the brace, the family can support the teenage girl's emotional well-being. Choices A, B, and D do not directly address the adolescent's concerns about body image and fitting in, making them less appropriate in this situation.
4. While performing a skin assessment on an older adult, the nurse notices a number of irregular round brownish-colored lesions on the client’s hands, arms, and face. On palpation, they are flat and slightly rough to the touch. Based on this assessment finding, which action should the nurse implement?
- A. Apply a topical antibiotic ointment.
- B. Monitor the lesions for changes.
- C. Advise the client to use sunscreen.
- D. Refer the client for a skin lesion biopsy.
Correct answer: D
Rationale: Referral for a skin biopsy is necessary to rule out potential malignancy of irregular skin lesions. Applying a topical antibiotic ointment (Choice A) is not indicated for irregular pigmented lesions. Monitoring the lesions for changes (Choice B) may delay appropriate intervention if malignancy is present. Advising the client to use sunscreen (Choice C) is important for sun protection but is not the priority when irregular lesions are present.
5. A client with chronic obstructive pulmonary disease (COPD) presented with shortness of breath. Oxygen therapy was started at 2 liters/minute via nasal cannula. The arterial blood gases (ABGs) after treatment were pH 7.36, PaO2 52, PaCO2 59, HCO3 33. Which statement describes the most likely cause of the simultaneous increase in both PaO2 and PaCO2?
- A. The client is hyperventilating due to anxiety.
- B. The hypoxic drive was reduced by the oxygen therapy.
- C. The client is experiencing respiratory alkalosis.
- D. The client is experiencing metabolic acidosis.
Correct answer: B
Rationale: Oxygen therapy can reduce the hypoxic drive in COPD patients, leading to increased PaCO2 levels while improving oxygenation (PaO2). In this case, the increase in PaO2 and PaCO2 is due to the reduction of the hypoxic drive by the supplemental oxygen. Choice A is incorrect because hyperventilation would lead to decreased PaCO2. Choice C is incorrect as the ABG values do not indicate respiratory alkalosis. Choice D is incorrect as the ABG values do not support metabolic acidosis.
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