A nurse is preparing a client diagnosed with active tuberculosis for discharge to home.
The nurse should prioritize which of the following discharge teachings for clients with active tuberculosis?

Choice A rationale:
Proper electrode placement is essential for obtaining an accurate ECG tracing. Misplaced electrodes can cause misinterpretation of the cardiac rhythm, particularly in clients with known arrhythmias like atrial fibrillation. Correct anatomical positioning of leads ensures reliable assessment of atrial and ventricular activity and allows accurate diagnosis and treatment planning by the provider.

Choice B rationale:
Ensuring the skin is clean and dry improves electrode adhesion and reduces electrical interference. Oily, sweaty, or moist skin increases resistance and results in artifact or poor-quality tracings. Cleaning the skin with alcohol and allowing it to dry before attaching electrodes minimizes artifact and enhances signal conduction between the skin and electrodes.

Choice C rationale:
Client movement during an ECG causes artifacts that may obscure the heart rhythm or mimic arrhythmias, complicating interpretation. Instructing the client to remain still ensures a clearer and more accurate representation of cardiac electrical activity. This is especially important when assessing for atrial fibrillation, where irregular rhythms must be clearly observed.

Choice D rationale:
Incorrect. Keeping the client NPO (nothing by mouth) is unnecessary for a standard ECG. ECG is a non-invasive procedure that does not require sedation, anesthesia, or fasting. Unless the client is scheduled for procedures requiring NPO status, food and fluids do not interfere with ECG testing or electrode function.

Choice E rationale:
Incorrect. Routine ECGs do not require sedation. The client is awake and cooperative, and sedation could mask symptoms, depress respiration, or alter heart rate, compromising the accuracy of the tracing. Sedation is only used during specific procedures (e.g., transesophageal echocardiogram or cardioversion), not standard surface ECG.

Choice A rationale

A dry leathery appearance and pale or brown color is characteristic of a full-thickness burn. This type of burn involves complete destruction of the epidermis and dermis, extending into subcutaneous tissue, causing coagulation necrosis and often nerve damage, resulting in insensitivity to pain.

Choice B rationale

A waxy appearance and cherry red color describes a deep partial-thickness burn. These burns extend deeper into the dermis, affecting sweat glands and hair follicles, and are often accompanied by pain and significant edema due to extensive tissue damage and inflammatory response.

Choice C rationale

Dryness with no blisters is typical of a superficial burn (first-degree burn). This burn primarily affects the epidermis, causing vasodilation and mild inflammation, but does not involve dermal damage, hence no blister formation, only transient erythema.

Choice D rationale

Mild erythema, open or closed blisters, skin easily blanches is characteristic of a superficial partial-thickness burn. This burn affects the epidermis and superficial layer of the dermis, causing capillary damage and leakage, leading to blister formation and a painful, erythematous, and moist appearance that blanches with pressure due to intact capillary refill.