The nurse is providing care for a geriatric patient with loss of hearing acuity over the past several years. Which statement by the nurse is most accurate?

A. Radiofrequency catheter ablation involves the use of electrical energy (radiofrequency energy) delivered through a catheter to destroy or ablate the areas of the heart tissue responsible for the abnormal electrical signals causing atrial flutter. This destruction of tissue helps to interrupt the abnormal electrical pathways and restore normal rhythm.
B. The procedure for atrial flutter ablation does not use cold therapy. Instead, it uses radiofrequency energy (heat) to ablate the tissue. Cold therapy, or cryoablation, is a different technique that uses extreme cold to achieve similar effects but is not the standard approach for radiofrequency catheter ablation.
C. Radiofrequency catheter ablation does not involve removing clots. The primary purpose of the procedure is to ablate abnormal tissue causing arrhythmias, not to address clots. Managing clots may involve anticoagulant therapy or other treatments, but it is not the focus of ablation.
D. Radiofrequency catheter ablation does not stimulate the growth of new conduction pathways. Instead, it aims to destroy the abnormal conduction pathways responsible for arrhythmias.

A. Fluid volume deficit, or dehydration, occurs when the body loses more fluid than it takes in. In this case, the patient has very low urine output, indicating that the kidneys are not excreting enough fluid. Despite the low urine output, the presence of pitting edema suggests that the patient is actually retaining fluid rather than losing it.
B. Bradycardia is defined as a heart rate slower than 60 beats per minute. While electrolyte imbalances and fluid imbalances can affect heart rate, bradycardia is not the primary concern associated with the combination of pitting edema and low urine output in this situation.
C. Hypertension (high blood pressure) is a common complication in acute glomerulonephritis. The condition often leads to fluid retention due to reduced kidney function and increased sodium and fluid retention. The presence of pitting edema and very low urine output suggests that the kidneys are not effectively removing excess fluid, which can lead to increased blood pressure.
D. Hyperglycemia refers to elevated blood glucose levels. Acute glomerulonephritis is not directly associated with hyperglycemia. While patients with diabetes can develop renal issues, hyperglycemia itself is not a typical direct complication of acute glomerulonephritis.