which is the most important safety measure when administering a medication through a patients central venous catheter cvc
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HESI PN Exit Exam 2024 Quizlet

1. Which is the most important safety measure when administering a medication through a patient’s central venous catheter (CVC)?

Correct answer: B

Rationale: The most important safety measure when administering a medication through a patient’s central venous catheter (CVC) is ensuring the correct placement of the CVC. This is crucial to prevent complications such as extravasation, infection, or improper drug delivery. While using a sterile technique, flushing the CVC with saline after administration, and monitoring for signs of infection are all important aspects of CVC care, ensuring the correct placement of the catheter takes precedence as it directly impacts patient safety during medication administration.

2. What is the function of the enzyme lactase in the digestive system?

Correct answer: A

Rationale: The correct answer is A: 'Breaks down lactose into glucose and galactose.' Lactase is an enzyme in the small intestine that specifically breaks down lactose, the sugar found in milk, into glucose and galactose for absorption. Choice B is incorrect because proteins are broken down into amino acids by protease enzymes. Choice C is incorrect because the enzyme amylase converts starch into maltose. Choice D is incorrect as lipase enzymes break down fats into fatty acids.

3. During a blood transfusion, which sign or symptom should prompt the healthcare provider to immediately stop the transfusion?

Correct answer: B

Rationale: The correct answer is B: Elevated temperature and chills. These symptoms are indicative of a transfusion reaction, which can be severe and life-threatening. It is crucial to stop the transfusion immediately and notify the healthcare provider for further assessment and management. Elevated temperature and chills are classic signs of a transfusion reaction, specifically indicating a possible febrile non-hemolytic reaction. Choice A, a slight increase in blood pressure, is not typically a reason to stop a transfusion unless it is a significant sudden increase. Mild nausea (Choice C) and a slight headache (Choice D) are common side effects of blood transfusions and are not primary indicators of a transfusion reaction that require immediate cessation of the transfusion.

4. An 8-year-old is placed in 90-90 traction for a fractured femur resulting from a motor vehicle collision. Which finding requires further action by the nurse?

Correct answer: C

Rationale: The correct answer is C. In 90-90 traction, the weights should hang freely and not touch the foot of the bed to maintain proper traction and bone alignment. Option A is not necessarily a concern as bowel movements can be influenced by various factors, including diet changes and pain medication. Option B indicates good caregiver involvement, promoting comfort and preventing complications. Option D demonstrates neurovascular function, which is a positive finding. Therefore, the weights touching the foot of the bed is the finding that requires immediate attention to ensure the effectiveness of the traction.

5. A client is post-operative day one following an open cholecystectomy. The nurse notices the client's drainage from the T-tube is dark green. What is the most appropriate action for the nurse to take?

Correct answer: A

Rationale: Dark green drainage from a T-tube after a cholecystectomy is bile, which is an expected finding. Bile is normally dark green in color. It is important for the nurse to recognize this as a normal post-operative occurrence and document the finding. There is no need to notify the healthcare provider immediately as this finding is an anticipated part of the client's recovery. Decreasing the suction on the T-tube or flushing it with saline is unnecessary and may not be indicated based on the color of the drainage. Therefore, the most appropriate action for the nurse to take is to document the dark green drainage as a normal finding.

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