A nurse is teaching a class about administering IV fluids to treat dehydration. The nurse should include in the teaching that which of the following laboratory values indicates effective treatment of dehydration?

Choice A Reason:
Ondansetron is incorrect. Ondansetron is an anti-nausea medication commonly used in cancer patients to manage nausea and vomiting, often caused by chemotherapy. It's not typically contraindicated or known to interact significantly with morphine administered via a PCA pump. This combination is often used to manage both pain and associated symptoms in cancer patients.
Choice B Reason:
Acetaminophen is incorrect. Acetaminophen is a pain reliever and fever reducer that doesn't typically interact significantly with morphine administered via a PCA pump. It's often used concurrently with other pain medications to manage discomfort in cancer patients. There isn't a known significant interaction between acetaminophen and morphine when used appropriately.
Choice C Reason:
Nalbuphine is correct. Nalbuphine is an opioid analgesic, similar to morphine, and administering it concurrently with morphine could potentially lead to opioid overdose or increased risk of opioid-related side effects such as respiratory depression. Thus, it's crucial to clarify with the provider whether there might be a potential interaction or if both medications are indeed necessary in this specific clinical scenario.
Choice D Reason:
Insulin glargine is incorrect. Insulin glargine is a long-acting insulin used to manage blood sugar levels in individuals with diabetes. While its interaction with morphine isn't typically a concern, it's essential to monitor blood sugar levels closely in individuals receiving opioids like morphine, as opioids can affect glucose metabolism and may necessitate adjustments in insulin dosage.

Choice A Reason:
"I should notify my provider if my stools turn black." This is the appropriate statement. Ferrous gluconate is an iron supplement commonly prescribed to treat or prevent iron deficiency anemia. When taking iron supplements, it's common for stools to become darker or even black in color. This change in stool color is due to the iron and is generally harmless. However, it's essential to inform the healthcare provider about this change because it can also indicate bleeding in the gastrointestinal tract, which requires evaluation.
Choice B Reason:
Taking an antacid with iron supplements can interfere with iron absorption. Antacids may decrease the absorption of iron in the stomach, so it's not recommended to take them together.
Choice C Reason:
While staying upright after taking certain medications can help prevent esophageal irritation or reflux, it's not specifically required with ferrous gluconate.
Choice D Reason:
Taking iron supplements with milk is also not recommended as milk and calcium-containing products can inhibit the absorption of iron. It's generally best to take iron supplements on an empty stomach or with vitamin C to enhance absorption, unless otherwise instructed by the healthcare provider.