Correct Answer: B

Rationale: The correct instruction the nurse should include in the teaching plan for a client prescribed glipizide (Glucotrol) is to monitor for signs of hypoglycemia. Glipizide stimulates insulin release from the pancreas, which can lead to hypoglycemia. It is usually taken before a meal, not necessarily on an empty stomach. Alcohol consumption should be avoided to prevent interactions with the medication. Taking the medication before bedtime is not the typical recommendation.

Correct Answer: B

Rationale: Omeprazole, a proton pump inhibitor, is used as an antiulcer agent to reduce gastric acid secretion. The optimal intended effect of omeprazole is the relief of pain and discomfort associated with gastric irritation, commonly referred to as heartburn. Therefore, the absence of heartburn indicates that the medication is working effectively in managing the client's gastric condition.

Correct Answer: B

Rationale: Guaifenesin is an expectorant used to help loosen mucus and make coughs more productive. Taking it with a full glass of water helps decrease the viscosity of secretions, making it easier to expel mucus from the respiratory tract. It is important not to crush sustained-release tablets, as this can alter the intended release of the medication and lead to potential adverse effects.

Correct Answer: C

Rationale: Pancrelipase (Pancrease MT) is a pancreatic enzyme replacement therapy used to aid digestion in clients with pancreatic insufficiency. One of the key goals of pancrelipase therapy is to reduce the amount of undigested fat in the stool, known as steatorrhea. Therefore, the nurse should evaluate the effectiveness of pancrelipase by looking for a reduction in steatorrhea, indicating improved digestion and absorption of fats.

Correct Answer: C

Rationale: Rifampin causes orange-red discoloration of body secretions, including sweat, tears, urine, and feces. It can also permanently stain soft contact lenses. It is essential to take rifampin exactly as directed and not discontinue it without consulting the healthcare provider.