A nurse is preparing to insert an IV catheter for an adult client. Which of the following actions should the nurse take?

Choice A reason:
A. Place the tourniquet below the proposed insertion site.
When preparing to insert an IV catheter, placing the tourniquet below the proposed insertion site helps facilitate venous distension, making it easier to locate and access a suitable vein for catheter insertion.
Choice B reason:
Placing the extremity in a dependent position (lower than the heart) can increase venous pressure and make it more difficult to insert the catheter.
Choice C reason:
Choosing the most proximal site on the extremity is not always necessary or appropriate. Veins distal to the proposed insertion site should be considered first, as they tend to be smaller and less accessible.
Choice D reason:
Applying a cool compress is not typically done before IV catheter insertion. It might cause vasoconstriction and make it more difficult to access a suitable vein.

Choice A reason
The client has an implanted defibrillator is the correct answer. Magnet therapy involves the use of magnets to alleviate pain and promote healing. However, it is contraindicated for individuals with implanted electronic devices, such as pacemakers or defibrillators, as the magnetic field could potentially interfere with the functioning of these devices. The safety of using magnet therapy with implanted devices has not been established, and caution is advised.
Choice B reason:
Allergic to penicillin is incorrect. Allergies to penicillin or other substances are not related to the use of magnet therapy.
Choice C reason:
The history of alcohol use disorder is incorrect. A history of alcohol use disorder does not directly contraindicate the use of magnet therapy.
Choice D reason:
The prescription for metoprolol is incorrect. Metoprolol is a common medication used to treat various conditions, including hypertension and certain heart conditions. It is not a contraindication for magnet therapy.