A nurse is phoning a provider to report a client’s serum potassium of 6.2 mEq/L. Which of the following medications should the nurse expect the provider to prescribe?

Choice A rationale
Monitoring the puncture site for hematoma is crucial because a hematoma can indicate bleeding at the puncture site, which can lead to complications such as infection or nerve damage. Hematomas can also cause increased intracranial pressure, which can be dangerous for the patient. Therefore, it is essential to monitor the site closely to ensure that any signs of bleeding are detected early and managed appropriately.
Choice B rationale
Elevating the client’s head of bed is incorrect because it can increase the risk of cerebrospinal fluid (CSF) leakage from the puncture site. After a lumbar puncture, it is recommended to keep the patient in a flat position for several hours to reduce the risk of post-lumbar puncture headache and to allow the puncture site to heal properly. Elevating the head of the bed too soon can disrupt this process and lead to complications.
Choice C rationale

Inserting a urinary catheter is incorrect because it is not a standard procedure following a lumbar puncture. The primary focus after a lumbar puncture is to monitor for complications related to the procedure itself, such as bleeding, infection, or CSF leakage. Inserting a urinary catheter is not necessary unless there is a specific indication for it, such as urinary retention or other urological issues.
Choice D rationale
Encouraging fluid intake is correct because it helps to replenish the CSF that was removed during the lumbar puncture. Increased fluid intake can also help to reduce the risk of post- lumbar puncture headache, which is a common complication. Hydration is important for overall recovery and helps to maintain normal bodily functions.
Choice E rationale
Applying a cervical collar to the client is incorrect because it is not related to the care of a lumbar puncture site. A cervical collar is typically used for patients with neck injuries or conditions affecting the cervical spine. It has no role in the management of a lumbar puncture site and would not provide any benefit in this context.

Step 1 is: Determine the amount of potassium chloride per mL. 20 mEq ÷ 15 mL = 1.33 mEq/mL Step 2 is: Calculate the volume needed to administer 30 mEq. 30 mEq ÷ 1.33 mEq/mL

= 22.56 mL The nurse should administer 22.6 mL (rounded to the nearest tenth).