HESI LPN
Medical Surgical Assignment Exam HESI Quizlet
1. The settings on a client's synchronized intermittent mandatory ventilation (SIMV) are respiratory rate 12 breaths/minute, tidal volume at 600 mL, FiO2 35%, and positive end-expiratory pressure (PEEP) 5 cm H2O. Which assessment finding necessitates immediate intervention by the nurse?
- A. Bilateral crackles in the lung bases.
- B. Low-pressure indicator alarm.
- C. Oxygen saturation of 91%.
- D. Respiratory rate of 18 breaths/minute.
Correct answer: B
Rationale: A low-pressure alarm may indicate a disconnection or leak in the system, which needs immediate intervention. Bilateral crackles in the lung bases may indicate fluid overload but do not require immediate intervention in this case. An oxygen saturation of 91% is concerning but not as urgent as a potential equipment issue. A respiratory rate of 18 breaths/minute is higher than the set rate but may not necessitate immediate intervention unless accompanied by other distress symptoms.
2. The nurse is caring for a client with a nasogastric tube. Which action should the nurse take to ensure proper functioning of the tube?
- A. Flush the tube with 50 mL of normal saline every 8 hours
- B. Clamp the tube when not in use
- C. Position the client in a supine position
- D. Verify tube placement by checking pH of gastric contents
Correct answer: D
Rationale: Verifying tube placement by checking the pH of gastric contents is crucial to ensure the nasogastric tube is correctly positioned in the stomach. This action helps prevent complications such as aspiration. Flushing the tube with normal saline every 8 hours is not necessary for ensuring proper functioning of the tube. Clamping the tube when not in use may lead to the build-up of gastric secretions and blockages. Positioning the client in a supine position is not directly related to ensuring the proper functioning of the nasogastric tube.
3. A client is currently receiving an infusion labeled as 5% dextrose injection 500 ml with heparin sodium 25,000 units at 14 mL/hour per pump. A prescription is received to change the rate of the infusion to heparin 1,000 units/hour. How many ml/hour should the nurse program the infusion pump?
- A. 16 ml/hour.
- B. 18 ml/hour.
- C. 20 ml/hour.
- D. 22 ml/hour.
Correct answer: C
Rationale: To deliver 1,000 units/hour from a solution with 25,000 units in 500 ml, the rate should be set to 20 ml/hour. This is calculated by determining that the solution has 50 units/ml (25,000 units / 500 ml = 50 units/ml) and then dividing the required 1,000 units/hour by 50 units/ml, resulting in 20 ml/hour. Therefore, the nurse should program the infusion pump to deliver heparin at 20 ml/hour. Choices A, B, and D are incorrect as they do not align with the calculated rate of 20 ml/hour.
4. The nurse is evaluating teaching about drug therapy to treat gout. Which statement by the client demonstrates an understanding of the use of allopurinol to treat Gout?
- A. I need to take the prescribed amount of the drug to get rid of my gout.
- B. I need to take this drug every day to keep from having any flare-ups.
- C. I should take this drug when I have gout attacks to reduce symptoms.
- D. The pain and swelling can be controlled by taking this drug every day.
Correct answer: B
Rationale: Taking allopurinol every day helps to prevent gout flare-ups by reducing uric acid levels.
5. An adult client who received partial-thickness and full-thickness burns over 40% of the body in a house fire is admitted to the inpatient burn unit.
- A. Normal Saline
- B. Lactated Ringer’s
- C. 5% Dextrose in water
- D. 0.45% Sodium Chloride
Correct answer: B
Rationale: In burn patients, Lactated Ringer's solution is preferred over other options as it helps in restoring fluid and electrolyte balance effectively. Lactated Ringer's contains electrolytes (sodium, potassium, calcium) that closely mimic the body's natural composition, making it a suitable choice for fluid resuscitation in burn injuries. Normal Saline (Choice A) lacks electrolytes like potassium and calcium, which are essential in burn management. 5% Dextrose in water (Choice C) is a hypotonic solution and is not the ideal choice for fluid resuscitation in burn patients. 0.45% Sodium Chloride (Choice D) is a hypotonic solution mainly used for conditions requiring free water replacement rather than volume expansion needed in burn injuries.
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