A client is ordered to receive a laxative by rectal suppository. How should the nurse position the client during the administration of the suppository?

A) Polyethylene Glycol: Polyethylene glycol is a medication typically used to treat constipation by promoting bowel movements. While it can be useful in managing constipation, it is not commonly prescribed after a myocardial infarction. In this situation, the focus is more on medications that promote heart health, reduce cardiac workload, and prevent complications related to the heart attack.

B) Bisacodyl: Bisacodyl is a stimulant laxative used to relieve constipation. However, this medication is not typically prescribed immediately following a myocardial infarction. Stimulant laxatives can cause dehydration and excessive fluid shifts, which can be harmful to a client recovering from a heart attack. The focus would be on safer options for bowel management in this context.

C) Senna: Senna is also a stimulant laxative, used for relieving constipation. Similar to bisacodyl, it is not ideal for clients who have recently experienced a myocardial infarction due to its potential for causing dehydration and electrolyte imbalances, which could negatively affect heart function. A gentler approach to bowel management is preferred for these clients.

D) Docusate Sodium: Docusate sodium is a stool softener commonly prescribed to prevent constipation, especially in clients who have recently had a myocardial infarction. After a heart attack, it's important to avoid straining during bowel movements, as this could increase pressure on the heart. Docusate sodium helps soften stools and promotes smoother bowel movements without stimulating the gastrointestinal system in a way that would elevate cardiac stress. It is the most appropriate choice for this client.

A. Sodium: Sodium levels are important to monitor, but in the context of pantoprazole use, abnormal sodium levels are less commonly a direct concern. Pantoprazole primarily impacts the gastric environment rather than fluid or electrolyte balance in a way that would dramatically alter sodium levels.

B. Gastric pH: Pantoprazole works to increase gastric pH by reducing acid secretion, which is its primary therapeutic effect. A higher gastric pH is expected and beneficial in conditions like GERD or peptic ulcers.

C. Calcium: Pantoprazole, when used for extended periods, can interfere with calcium absorption, potentially leading to bone health issues like osteoporosis. However, changes in calcium levels typically do not pose an immediate or life-threatening concern unless significantly low or related to prolonged therapy. It is still something to monitor, but magnesium is a higher priority in this case.

D. Magnesium: Pantoprazole and other proton pump inhibitors (PPIs) are known to cause hypomagnesemia, especially with prolonged use. Low magnesium levels can lead to serious complications, including muscle spasms, seizures, and arrhythmias. Hypomagnesemia is a well-documented side effect of long-term PPI use, making it the most critical lab result to address.