HESI LPN
HESI Test Bank Medical Surgical Nursing
1. A client who had surgery yesterday is becoming increasingly anxious. The client’s respiratory rate has increased to 38 breaths/minute. The client has a nasogastric tube to low intermittent suction with 500 ml of yellow-green drainage over the last four hours. The client's arterial blood gases (ABGs) indicate a decreased CO2 and an increased serum pH. Which serum laboratory value should the nurse monitor first?
- A. Electrolytes.
- B. Creatinine.
- C. Blood urea nitrogen.
- D. Glucose.
Correct answer: A
Rationale: The correct answer is A, Electrolytes. In this scenario, the client is at risk for metabolic alkalosis due to the loss of gastric secretions through the nasogastric tube. Monitoring electrolytes is crucial to assess the levels of sodium, potassium, chloride, and bicarbonate, which are important in maintaining the acid-base balance of the body. Changes in these electrolyte levels can provide valuable information about the client's fluid status and acid-base balance. Creatinine, blood urea nitrogen, and glucose levels are important parameters to monitor in different situations but are not the priority in this case of potential metabolic alkalosis.
2. A client is receiving intravenous potassium chloride for hypokalemia. Which action should the nurse take to prevent complications during the infusion?
- A. Administer the infusion rapidly
- B. Monitor the infusion site for signs of infiltration
- C. Use a syringe pump for the infusion
- D. Flush the IV line with normal saline before starting the infusion
Correct answer: B
Rationale: The correct action to prevent complications during the infusion of potassium chloride is to monitor the infusion site for signs of infiltration. Rapid administration can lead to adverse effects, including cardiac arrhythmias. Using a syringe pump is not typically necessary for this infusion. Flushing the IV line with normal saline is a good practice but not directly related to preventing complications specifically during the infusion of potassium chloride.
3. When assessing an adolescent with depression, what is the most important question for the nurse to ask?
- A. What is causing your feelings of depression?
- B. Have you ever thought about suicide?
- C. What actions can we take to improve your mood?
- D. Would you like your friends to come over?
Correct answer: B
Rationale: The correct answer is B: 'Have you ever thought about suicide?' When assessing an adolescent with depression, it is crucial to ask direct questions about suicidal thoughts. This helps determine the severity of the situation, especially if the person has considered or planned to harm themselves. Choice A is not as direct and specific to suicidal ideation. Choice C focuses on improving mood rather than assessing the risk of harm. Choice D is unrelated to assessing suicidal ideation and the severity of the depression.
4. A male client with acquired immune deficiency syndrome (AIDS) and Pneumocystis carinii pneumonia has a CD4+ T cell count of 200 cells/microliter. The client asks the nurse why he keeps getting these massive infections. Which pathophysiologic mechanism should the nurse describe in response to the client's question?
- A. Bone marrow suppression of white blood cells causes insufficient cells to phagocytize organisms.
- B. Exposure to multiple environmental infectious agents overburdens the immune system until it fails.
- C. The humoral immune response lacks B cells that form antibodies and opportunistic infections result.
- D. Inadequate numbers of T lymphocytes are available to initiate cellular immunity and macrophages.
Correct answer: D
Rationale: With a CD4+ T cell count of 200 cells/microliter, the client's immune system is severely compromised, leading to opportunistic infections.
5. A client admitted to a surgical unit is being evaluated for an intestinal obstruction. The HCP prescribes an NG tube to be inserted and placed on intermittent low wall suction. Which intervention should the nurse implement to facilitate proper tube placement?
- A. Soak the NG tube in warm water
- B. Insert the tube with the client's head tilted back
- C. Apply suction while inserting the tube
- D. Elevate the head of the bed 60 to 90 degrees
Correct answer: D
Rationale: Elevating the head of the bed 60 to 90 degrees is the correct intervention to facilitate proper placement of the NG tube. This position helps to use gravity to guide the tube smoothly into the gastrointestinal tract. Soaking the NG tube in warm water (Choice A) is not necessary for proper placement. Inserting the tube with the client's head tilted back (Choice B) can cause discomfort and may lead to improper placement. Applying suction while inserting the tube (Choice C) is not recommended as it can cause trauma to the nasal passages and esophagus.
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