A nurse is collecting data from a client who has a gastrostomy tube and is experiencing diarrhea. Which of the following factors should the nurse identify as a potential cause of the diarrhea?

The nurse should include increased cardiac output as an expected effect of digoxin when reinforcing teaching with the client. Digoxin is a positive inotropic medication that strengthens the force of contraction of the heart, resulting in increased cardiac output.

Option a, increased heart rate, is not an expected effect of digoxin. Digoxin may actually decrease heart rate by exerting a negative chronotropic effect.

Option c, decreased urinary output, is not an expected effect of digoxin. In fact, digoxin does not directly affect urinary output.

Option d, decreased potassium level, is not an expected effect of digoxin. However, digoxin can increase the risk of hypokalemia, so it is important to monitor the client's potassium levels while on the medication.

Hyponatremia refers to a lower-than-normal level of sodium in the blood. Sodium is an essential electrolyte involved in various bodily functions, including maintaining fluid balance and transmitting nerve impulses. When sodium levels are low, it can lead to fluid imbalances, affecting the function of muscles and nerves. Muscle cramps are a common manifestation of hyponatremia and occur due to alterations in muscle excitability and contractility.

Constipation: Constipation is not typically associated with hyponatremia. It can occur due to various reasons, such as dietary factors, lack of physical activity, or other medical conditions, but it is not a direct consequence of low sodium levels.

Hypertension: Hyponatremia is not usually associated with hypertension (high blood pressure). Hypertension can be caused by several factors, including genetics, lifestyle, and certain medical conditions, but it is not directly related to low sodium levels.

Blurred vision: While blurred vision can occur in some medical conditions, such as diabetes or certain eye disorders, it is not a typical finding in hyponatremia. Visual disturbances are not a direct consequence of low sodium levels.