A nurse is caring for a client who arrives at the emergency department and reports vomiting and diarrhea for the past 3 days. The client's serum potassium level is 2.8 mEq/L. Which of the following interventions should the nurse implement first?

Choice A reason:

Checking the client's vital signs is not appropriate. Checking vital signs is important to assess the severity of the reaction and monitor the client's overall condition.

Choice B reason:

Stopping the infusion is appropriate. Stopping the infusion is crucial to prevent further administration of the blood product that might be causing the adverse reaction. Once the infusion is stopped, the nurse can assess the client's condition more thoroughly and determine the appropriate steps to take next.

Choice C reason:

Collecting a urine sample is not appropriate. While urine sample collection may be important to assess for hemolysis (breakdown of red blood cells), it's not the first action to take. Stopping the infusion and assessing the client's vital signs are more immediate priorities.

Choice D reason:

Administering oxygen to the client is not appropriate. Providing oxygen might be necessary if the client is experiencing respiratory distress, but it's not the first action to take. Stopping the infusion and assessing the situation before providing additional interventions.

Choice A reason:

Listening to the client's bowel sounds should not be implemented. While assessing bowel sounds is important, it is not the highest priority in this situation. The client's low serum potassium level indicates the potential for serious cardiac arrhythmias, so actions related to monitoring and addressing this electrolyte imbalance are more critical.

Choice B reason:

Initiate cardiac monitoring for the client is the correct answer. A serum potassium level of 2.8 mEq/L is significantly low and can lead to life-threatening cardiac arrhythmias. Initiating cardiac monitoring is crucial to assess the client's heart rhythm and ensure that any potential abnormalities are identified promptly.

Choice C reason:

Check the client's hand grasps should not be implemented. Assessing the client's hand grasps can provide information about muscle strength, but it is not the immediate priority when the client has a critically low potassium level.

Choice D reason:

Administer an IV potassium drip should not be implemented. Administering IV potassium is important for correcting the potassium imbalance, but the priority is to assess and monitor the client's cardiac status first. Rapid administration of potassium can lead to cardiac arrhythmias, so it's important to ensure the heart's stability through cardiac monitoring before administering potassium.