HESI RN
HESI Fundamentals Practice Exam
1. How many drops per minute should a client weighing 182 pounds receive if a nurse mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min? The drip factor is 60 gtt/ml.
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To determine the drops per minute for the client, first convert the client's weight from pounds to kilograms: 182/2.2 = 82.73 kg. Calculate the dosage by multiplying 5 mcg by the client's weight in kg: 5 mcg/kg/min × 82.73 kg = 413.65 mcg/min. Find the concentration of the solution in mcg/ml by dividing 250 ml by 50,000 mcg (50 mg): 250 ml/50,000 mcg = 200 mcg/ml. As the client needs 413.65 mcg/min and the solution is 200 mcg/ml, the client should receive 2.07 ml per minute. Finally, using the drip factor of 60 gtt/ml, multiply the ml per minute by the drip factor: 60 gtt/ml × 2.07 ml/min = 124.28 gtt/min, which rounds to 124 gtt/min. Therefore, the client should receive 124 drops per minute. Choice D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate calculation based on the client's weight, dosage, concentration of the solution, and drip factor.
2. A client with a history of coronary artery disease (CAD) is admitted with chest pain. Which intervention should the nurse implement first?
- A. Administer sublingual nitroglycerin
- B. Obtain a 12-lead electrocardiogram (ECG)
- C. Apply oxygen via nasal cannula
- D. Initiate continuous cardiac monitoring
Correct answer: C
Rationale: In a client with a history of coronary artery disease (CAD) experiencing chest pain, the priority intervention for the nurse to implement first is to apply oxygen via nasal cannula. Oxygenation is crucial to ensure adequate oxygen supply to the tissues and the heart. This intervention takes precedence over administering sublingual nitroglycerin, obtaining an ECG, or initiating continuous cardiac monitoring. While these interventions are important, ensuring adequate oxygenation is the initial priority in the management of a client with chest pain.
3. The client is being taught how to self-administer a subcutaneous injection. To ensure sterility of the procedure, which subject is most important for the instructor to include in the teaching plan?
- A. Hand washing before preparing the injection.
- B. Technique for drawing medication from a vial.
- C. Selection and rotation of injection sites.
- D. Proper disposal of injection equipment.
Correct answer: B
Rationale: To maintain the sterility of the procedure, it is crucial to teach the client the correct technique for drawing medication from a vial. This ensures that the medication remains sterile during preparation and administration. While hand washing, injection site selection, and equipment disposal are important aspects of injection safety, the key focus should be on maintaining the sterility of the medication itself to prevent infections and ensure the effectiveness of the treatment.
4. An adult has a coagulation time of 20 minutes. The nurse should observe the client for which of the following?
- A. Blood clots
- B. Ecchymotic areas
- C. Jaundice
- D. Infection
Correct answer: B
Rationale: A coagulation time of 20 minutes is prolonged, suggesting a potential bleeding disorder. Ecchymotic areas, which are areas of bruising, are common signs of abnormal bleeding. Therefore, the nurse should observe the client for ecchymotic areas to monitor for potential bleeding issues. Blood clots are not typically associated with prolonged coagulation time but rather with excessive clotting. Jaundice is related to liver dysfunction, and infection is not directly linked to coagulation time.
5. The healthcare provider is aware that malnutrition is a common problem among clients served by a community health clinic for the homeless. Which laboratory value is the most reliable indicator of chronic protein malnutrition?
- A. Low serum albumin level
- B. Low serum transferrin level
- C. High hemoglobin level
- D. High cholesterol level
Correct answer: A
Rationale: A low serum albumin level is the most reliable indicator of chronic protein malnutrition. Serum albumin levels reflect long-term protein status, and a significantly lowered level usually indicates ongoing protein deficiency. Other laboratory values, such as serum transferrin, hemoglobin, or cholesterol levels, may be affected by various factors and conditions, but serum albumin is a more specific marker for chronic protein malnutrition.
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