A nurse is providing teaching to a client who has a new permanent pacemaker. Which of the following statements by the client indicates an understanding of the teaching?

A. Increased body hair: Adrenal insufficiency leads to decreased androgen production, which may cause hair thinning rather than increased body hair. Hypertrichosis (excessive hair growth) is not a typical finding in adrenal insufficiency.

B. Decreased blood urea nitrogen level: Adrenal insufficiency is often associated with dehydration due to aldosterone deficiency, leading to reduced sodium retention and increased fluid loss. This can result in elevated blood urea nitrogen (BUN) levels rather than a decrease.

C. Hyperpigmentation of the skin: Increased melanocyte-stimulating hormone (MSH) activity, triggered by elevated adrenocorticotropic hormone (ACTH) levels, causes darkening of the skin, especially in sun-exposed areas, skin folds, and mucous membranes. This is a hallmark feature of primary adrenal insufficiency (Addison’s disease).

D. Hypocalcemia: Adrenal insufficiency is more commonly associated with hypercalcemia rather than hypocalcemia. Decreased cortisol levels can lead to reduced renal calcium excretion, contributing to elevated serum calcium levels.

A. Diminished breath sounds: A pneumothorax occurs when air accumulates in the pleural space, leading to lung collapse. This results in reduced air entry, causing diminished or absent breath sounds on the affected side. Other symptoms may include dyspnea, tachypnea, and chest pain.

B. Distended neck veins: Neck vein distention is more commonly associated with conditions such as cardiac tamponade or superior vena cava syndrome. A pneumothorax typically causes respiratory distress rather than venous congestion. If a tension pneumothorax develops, neck vein distention may occur, but it is not an early or primary sign.

C. Irregular heart rate: While severe cases of pneumothorax can cause cardiovascular compromise due to pressure on the heart and great vessels, an irregular heart rate is not a direct or early indicator. Cardiac arrhythmias are more often seen with electrolyte imbalances, cardiac ischemia, or other primary heart conditions.

D. Itching over the incision: Itching at the catheter insertion site is a common postoperative reaction, often related to healing, adhesive irritation, or mild inflammation. It is not indicative of a pneumothorax, which primarily presents with respiratory distress and absent or diminished breath sounds.