HESI LPN
Medical Surgical Assignment Exam HESI
1. 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.
2. A community hit by a hurricane has suffered mass destruction and flooding. Several facilities are not functioning, and the area is contaminated with human excretions. The nurse is developing a plan of care for clients diagnosed with cholera after an outbreak. Which intervention has the highest priority?
- A. Administer prophylactic antibiotics as prescribed.
- B. Provide fluid and electrolyte replacement.
- C. Isolate all infectious diarrhea victims.
- D. Administer cholera vaccine.
Correct answer: B
Rationale: Providing fluid and electrolyte replacement is the highest priority to prevent dehydration and shock in clients with cholera. Administering prophylactic antibiotics may be necessary but is not the highest priority. Isolating infectious diarrhea victims is important for preventing the spread of infection, but addressing fluid and electrolyte imbalances takes precedence. Administering a cholera vaccine is preventive and not the immediate priority in treating clients already diagnosed with cholera.
3. A male client tells the nurse that he is experiencing burning on urination, and assessment reveals that he had sexual intercourse four days ago with a woman he casually met. Which action should the nurse implement?
- A. Observe the perineal area for a chancroid-like lesion.
- B. Obtain a specimen of urethral drainage for culture.
- C. Assess for perineal itching, erythema, and excoriation.
- D. Identify all sexual partners in the last four days.
Correct answer: B
Rationale: In this scenario, the most appropriate action for the nurse to take is to obtain a specimen of urethral drainage for culture. This procedure can help diagnose the cause of burning on urination, which could be indicative of a sexually transmitted infection. Option A, observing for a chancroid-like lesion, may not be the most immediate or relevant action in this case. Option C, assessing for perineal itching, erythema, and excoriation, is important but obtaining a culture specimen would provide more specific diagnostic information. Option D, identifying all sexual partners, is relevant for contact tracing but obtaining a culture specimen is the priority to determine the current infection status.
4. The nurse is providing postoperative care for a client who had a thyroidectomy. Which assessment finding requires immediate intervention?
- A. Hoarseness and weak voice
- B. Calcium level of 8.0 mg/dL (2.0 mmol/L)
- C. Heart rate of 110 beats per minute
- D. Difficulty swallowing
Correct answer: D
Rationale: Difficulty swallowing can indicate swelling or hematoma formation, which may compromise the airway and requires immediate intervention. Hoarseness and a weak voice are expected post-thyroidectomy due to manipulation of the laryngeal nerves but do not require immediate intervention. A calcium level of 8.0 mg/dL is within the normal range (8.5-10.5 mg/dL) and may not require immediate intervention. A heart rate of 110 beats per minute may be elevated due to stress or pain postoperatively, but it does not indicate an immediate threat to the airway.
5. After hospitalization for SIADH, a client develops pontine myelinolysis. Which intervention should the nurse implement first?
- A. Reorient the client to the room
- B. Place an eye patch on one eye
- C. Evaluate the client's ability to swallow
- D. Perform range of motion exercises
Correct answer: C
Rationale: Evaluating the client's ability to swallow is the priority intervention in this scenario. Pontine myelinolysis can affect neurological functions, including swallowing ability, putting the client at risk for aspiration. Assessing the client's ability to swallow will help prevent complications such as aspiration pneumonia. Reorienting the client to the room, placing an eye patch, or performing range of motion exercises are not as critical as ensuring the client can safely swallow.
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