HESI LPN
Medical Surgical HESI
1. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
2. The parents of a child who has been diagnosed with sickle cell anemia ask why their child experiences pain. What is the most likely cause of the pain?
- A. Inflammation of the vessels
- B. Obstructed blood flow
- C. Overhydration
- D. Stress-related headaches
Correct answer: B
Rationale: The correct answer is B: Obstructed blood flow. In sickle cell anemia, the sickle-shaped red blood cells can clump together, obstructing blood flow in the vessels. This obstruction leads to tissue hypoxia (lack of oxygen) and necrosis, causing pain. Choice A, inflammation of the vessels, is not the primary cause of pain in sickle cell anemia. Choice C, overhydration, is unrelated to the pathophysiology of sickle cell anemia. Choice D, stress-related headaches, is not a characteristic symptom of sickle cell anemia.
3. Which signs/symptoms would be considered classical signs of meningeal irritation?
- A. Positive Kernig sign, diarrhea, and headache
- B. Negative Brudzinski sign, positive Kernig sign, and irritability
- C. Positive Brudzinski sign, positive Kernig sign, and photophobia
- D. Negative Kernig sign, vomiting, and fever
Correct answer: C
Rationale: The correct answer is C: Positive Brudzinski sign, positive Kernig sign, and photophobia are considered classical signs of meningeal irritation. The Kernig sign is positive when the leg is extended at the knee and then raised, resulting in pain and resistance. The Brudzinski sign is positive when flexing the neck causes flexion of the hips and knees due to meningeal irritation. Photophobia, or sensitivity to light, is a common symptom due to meningeal inflammation. Choices A, B, and D are incorrect because they do not include the classic signs associated with meningeal irritation.
4. An adult client is admitted with AIDS and oral candidiasis manifested by several painful mouth ulcers. The nurse delegates oral care to the unlicensed assistive personnel (UAP) and discusses how to assist the client. Which instruction should the nurse provide the UAP?
- A. Assist with personal care, but leave oral care for the nurse to complete.
- B. Provide a soft bristle brush for the client to use during oral care.
- C. Use alcohol-based mouthwash to clean the ulcers.
- D. Apply an antifungal cream to the mouth ulcers.
Correct answer: B
Rationale: The correct answer is B: 'Provide a soft bristle brush for the client to use during oral care.' Providing a soft bristle brush helps reduce trauma to the oral mucosa and assists in oral care. Choice A is incorrect because oral care can be safely delegated to UAPs. Choice C is wrong as alcohol-based mouthwash can further irritate the ulcers. Choice D is incorrect as applying an antifungal cream directly to the mouth ulcers is not the standard treatment for oral candidiasis.
5. A young adult male is admitted to the intensive care unit with multiple rib fractures and severe pulmonary contusions after falling 20 feet from a rooftop. The Chest X-ray suggests acute Respiratory distress Syndrome. Which assessment finding warrants immediate intervention by the Nurse?
- A. Apical pulse 58 bpm.
- B. Core body temperature 100.8°F.
- C. Tachypnea with dyspnea.
- D. Multiple bruises over the chest area.
Correct answer: C
Rationale: In a patient with multiple rib fractures, severe pulmonary contusions, and possible acute Respiratory Distress Syndrome (ARDS), tachypnea (rapid breathing) with dyspnea (shortness of breath) is a critical sign of respiratory distress that warrants immediate intervention by the nurse. Tachypnea and dyspnea indicate inadequate oxygenation and ventilation, which can lead to respiratory failure if not addressed promptly. The other options, such as apical pulse rate, core body temperature, and bruises over the chest area, are important assessments but do not directly indicate the immediate need for intervention in a patient with respiratory distress.
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