A nurse is teaching a client who has a new prescription for metformin extended-release tablets.
Which of the following statements by the client indicates an understanding of the teaching?

A. A client who has cellulitis and is receiving oral antibiotics every 8 hr has a mild to moderate infection that can be managed at home with proper wound care and medication adherence. The client does not require hospitalization unless there are signs of systemic infection or complications.

B. A client who is postoperative following an upper endoscopy procedure and is alert but does not have a gag reflex has a high risk of aspiration and airway obstruction due to impaired swallowing function. The client requires close monitoring and intervention until the gag reflex returns, which can take several hours or longer depending on the type and amount of anesthesia used.

C. A mother and their newborn 12 hr postdelivery have not completed the minimum recommended stay of 24 to 48 hours for uncomplicated vaginal deliveries or 72 to 96 hours for cesarean deliveries, according to the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists. The mother and their newborn require assessment, education, support, and follow-up care to ensure their health and well-being.

D. A client who has lower extremity weakness and is newly admitted for observation has an undiagnosed condition that could indicate a serious neurological or vascular problem, such as stroke, spinal cord injury, or peripheral artery disease. The client requires diagnostic testing, evaluation, treatment, and rehabilitation to prevent further deterioration or complications.

Choice A rationale:

Hanging the transfusion with dextrose 5% in 0.9% sodium chloride is incorrect. Packed red blood cells (PRBCs) are transfused with normal saline (0.9% sodium chloride) and not with dextrose-containing solutions. Using dextrose can cause the red blood cells to hemolyze.

Choice B rationale:

Infusing the transfusion over 5 hours is incorrect. PRBC transfusions are typically administered over 2-4 hours, not 5 hours. Infusing the blood too slowly may cause the patient discomfort and may also increase the risk of bacterial growth in the blood product.

Choice C rationale:

Using a 20-gauge IV catheter to transfuse the blood is incorrect. While a 20-gauge IV catheter is suitable for most blood transfusions, it may not be appropriate for older adults or patients with fragile veins. A smaller gauge, such as 22 or 24, might be more suitable to prevent phlebitis and ensure a steady flow without damaging the blood cells.

Choice D rationale:

Monitoring vital signs every hour throughout the transfusion is the correct action. During a blood transfusion, it's crucial to monitor the patient's vital signs frequently to detect any adverse reactions promptly. Vital signs, including blood pressure, heart rate, respiratory rate, and temperature, should be assessed before the transfusion, 15 minutes after starting the transfusion, and then hourly thereafter. This vigilant monitoring helps in identifying potential transfusion reactions, such as fever, chills, or hypotension, allowing for immediate intervention if needed.