A client with age-related macular degeneration (AMD) is undergoing photodynamic therapy with the medication Verteporfin. What should the nurse include in the discharge teaching for this client?

A. Increased energy levels are a common and positive sign of therapeutic response to levothyroxine. Hypothyroidism often leads to fatigue and low energy. When levothyroxine is effective, it helps normalize thyroid hormone levels, which can lead to improved energy levels and a reduction in symptoms like fatigue and lethargy.
B. An increase in weight is not a desired outcome of levothyroxine therapy. In hypothyroidism, weight gain is a common symptom due to slowed metabolism. Successful levothyroxine treatment should help stabilize or reduce weight if it was previously increased due to hypothyroidism. An increase in weight could indicate that the dose of levothyroxine needs adjustment or that other factors are influencing the patient's weight.
C. A decrease in the level of thyroxine (T4) would not typically indicate a therapeutic response to levothyroxine. In fact, the goal of treatment is to normalize T4 levels, so they should be within the normal reference range. An adequate dose of levothyroxine should result in normal or near-normal T4 levels, not a decrease below the normal range.
D. A reduction in appetite is not a common or specific indicator of a therapeutic response to levothyroxine. While levothyroxine can help normalize metabolism and other symptoms of hypothyroidism, a reduction in appetite is not a typical outcome of effective therapy. Appetite changes are not usually used to gauge the effectiveness of thyroid hormone replacement.

A. Casts in the urine are typically associated with kidney problems, such as glomerulonephritis or kidney infections, rather than biliary obstruction. Casts are formed from proteins or cells in the renal tubules and are not related to bile duct obstruction or cholelithiasis.
B. Dark, tarry stools are indicative of upper gastrointestinal bleeding and the presence of digested blood in the stool. This condition, known as melena, is not typically associated with obstruction of the common bile duct due to cholelithiasis.
C. Jaundice is a common and significant finding in cases of obstruction of the common bile duct due to cholelithiasis. When the bile duct is obstructed, bilirubin, which is a component of bile, accumulates in the bloodstream because it cannot be properly excreted into the intestine.
D. Pain from cholelithiasis (gallstones) typically occurs in the right upper quadrant, not the left. The right upper quadrant pain is often associated with gallbladder inflammation or bile duct obstruction.