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 is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which intervention should the nurse implement first?
- A. Administer regular insulin IV.
- B. Administer IV fluids at 250 ml/hr.
- C. Administer sodium bicarbonate IV push.
- D. Administer furosemide (Lasix) IV push.
Correct answer: A
Rationale: Administering regular insulin IV (A) is the initial intervention for a client with diabetic ketoacidosis (DKA) to rapidly reduce blood glucose levels. This is vital in reversing the ketosis and acidosis seen in DKA. Administering IV fluids (B) helps to correct dehydration and electrolyte imbalances. Administering sodium bicarbonate (C) and furosemide (D) may be necessary depending on the client's condition, but insulin administration takes precedence in the management of DKA.
3. The client is being taught how to perform active range of motion (ROM) exercises. To exercise the hinge joints, which action should the client be instructed to perform?
- A. Tilt the pelvis forwards and backwards
- B. Bend the arm by flexing the ulnar to the humerus
- C. Turn the head to the right and left
- D. Extend the arm at the side and rotate it in circles
Correct answer: B
Rationale: Hinge joints, like the elbow, primarily allow movement in one direction, in this case, bending the arm. The correct action to exercise hinge joints is to bend the arm by flexing the ulnar to the humerus. This movement specifically targets the hinge joint and promotes its range of motion. Choices A, C, and D involve movements that do not specifically target hinge joints. Tilt the pelvis involves the ball-and-socket joints of the hip, turning the head involves the pivot joint of the neck, and extending the arm and rotating it in circles involve multiple joints including ball-and-socket and pivot joints.
4. The nurse is preparing to administer 2 units of packed red blood cells (PRBCs) to a client. Which action should the nurse implement to ensure the client’s safety?
- A. Obtain informed consent from the client for the PRBC transfusion
- B. Review the client’s medical history for a history of transfusion reactions
- C. Assess the client’s baseline vital signs before starting the transfusion
- D. Verify the blood type and crossmatch with another licensed nurse
Correct answer: D
Rationale: Verifying the blood type and crossmatch with another licensed nurse is crucial to prevent transfusion reactions and ensure the client's safety. This step helps confirm that the correct blood type is being transfused to the client, reducing the risk of adverse reactions and promoting safe care. Obtaining informed consent (Choice A) is important but not directly related to ensuring the safety of the transfusion. Reviewing the client's medical history for transfusion reactions (Choice B) is relevant but not as crucial as verifying the blood type and crossmatching. Assessing baseline vital signs (Choice C) is a routine practice before transfusion but ensuring the correct blood type is a higher priority.
5. The client with chronic obstructive pulmonary disease (COPD) is receiving oxygen therapy. Which intervention should the nurse implement to ensure the client’s safety?
- A. Encourage the client to use oxygen continuously
- B. Monitor the client’s respiratory rate and effort
- C. Set the oxygen flow rate at 6 liters per minute
- D. Teach the client to avoid wearing wool blankets
Correct answer: B
Rationale: Monitoring the client’s respiratory rate and effort is essential to evaluate the effectiveness of oxygen therapy and prevent complications such as respiratory depression. This intervention helps the nurse promptly detect any deterioration in the client's respiratory status and take necessary actions to ensure the client's safety. Encouraging continuous oxygen use (Choice A) may lead to oxygen toxicity. Setting the oxygen flow rate at a specific level (Choice C) without individual assessment can be inappropriate and potentially harmful. Teaching the client to avoid wearing wool blankets (Choice D) is unrelated to the safe use of oxygen therapy.
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