Nursing Elites

1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the nurse set the client's intravenous infusion pump?

• A. 13 ml/hour.
• B. 63 ml/hour.
• C. 80 ml/hour.
• D. 125 ml/hour.

Correct answer: B

Rationale: The correct calculation involves dividing the total volume by the total time. In this case, 250 ml/4 hours = 63 ml/hour. The dose of KCl is not used in the calculation as the focus is on the rate of infusion over the specified time period. Choice A (13 ml/hour) is incorrect as it does not result from the correct calculation. Choice C (80 ml/hour) and Choice D (125 ml/hour) are also incorrect calculations and do not match the correct rate of infusion required.

2. Why is it most important to start intravenous infusions in the upper extremities rather than the lower extremities of adults?

• A. Superficial veins are more easily found in the feet and ankles.
• B. A decreased flow rate could lead to thrombosis formation.
• C. It is more challenging to move a cannulated extremity when using the leg or foot.
• D. Veins in the feet and ankles are located deep, making the procedure more painful.

Correct answer: B

Rationale: The most critical reason for initiating intravenous infusions in the upper extremities of adults is to reduce the risk of thrombosis (B). Venous return is typically better in the upper extremities, decreasing the likelihood of thrombus formation, which could be life-threatening if dislodged. Although superficial veins are easily found in the feet and ankles (A), this is not the primary reason for choosing the upper extremities. Handling a leg or foot with an IV (C) is not significantly more challenging than handling an arm or hand. The depth of veins in the feet and ankles (D) does not primarily determine the site for IV placement.

3. The healthcare provider attaches a pulse oximeter to a client's fingers and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?

• A. BP 142/88 mmHg
• B. 2+ edema of fingers and hands
• C. Radial pulse volume is +3
• D. Capillary refill time is 2 seconds

Correct answer: B

Rationale: Edema in the fingers and hands can impede the proper functioning of the pulse oximeter, leading to a falsely low oxygen saturation reading. Edema alters the transmission of light through the tissues, affecting the accuracy of the measurement. Therefore, the presence of edema in the fingers and hands is the most likely factor contributing to the low oxygen saturation reading of 91%.

4. The nurse is attempting to pass an indwelling catheter in an adult male and is having difficulty. What is the most appropriate action for the nurse?

• A. Remove the catheter and reinsert it with the client positioned differently.
• B. Try a straight catheter instead.
• C. Try a smaller catheter.
• D. Discontinue the procedure and notify the physician.

Correct answer: D

Rationale: If resistance is encountered, the nurse should discontinue the procedure and notify the physician, as this may indicate an obstruction.

5. A hospitalized male client is receiving nasogastric tube feedings via a small-bore tube and a continuous pump infusion. He reports that he had a bad bout of severe coughing a few minutes ago but feels fine now. What action is best for the nurse to take?

• A. Record the coughing incident. No further action is required at this time.
• B. Stop the feeding, explain to the family why it is being stopped, and notify the healthcare provider.
• C. After clearing the tube with 30 ml of air, check the pH of fluid withdrawn from the tube.
• D. Inject 30 ml of air into the tube while auscultating the epigastrium for gurgling.

Correct answer: C

Rationale: Coughing, vomiting, and suctioning can precipitate displacement of the tip of the small-bore feeding tube upward into the esophagus, placing the client at increased risk for aspiration. Checking the sample of fluid withdrawn from the tube (after clearing the tube with 30 ml of air) for acidic (stomach) or alkaline (intestine) values is a more sensitive method for these tubes. The nurse should assess tube placement in this way before taking any other action to ensure the tube is still in the correct position and prevent potential complications. Choice A is incorrect because further assessment is needed due to the risk of tube displacement. Choice B is incorrect as stopping the feeding and involving the family is premature without confirming tube placement. Choice D is incorrect as injecting air and auscultating for gurgling is not the recommended method to confirm tube placement.

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