A nurse who is caring for a preschooler should question a prescription for which of the following antibiotics?

A. Urinary retention: While urinary retention can be a side effect of meperidine and other opioids, it is not the priority assessment before administering the medication. Urinary retention is a concern but is not immediately life-threatening compared to other potential side effects of opioids, such as respiratory depression. Assessing urinary retention is important, but it is not the primary concern in this situation.

B. Vomiting: Vomiting can also be a side effect of opioids, including meperidine. While it is essential to assess for vomiting and its potential impact on the client's overall condition, it is not the priority assessment before administering the medication. Vomiting can be managed, and the nurse should address it as needed. However, the priority assessment is one that can affect the client's immediate safety and well-being, such as respiratory rate and potential respiratory depression.

C. Respiratory rate: This is the correct answer. The priority assessment before administering meperidine is the client's respiratory rate. Opioids can cause respiratory depression, leading to reduced breathing and inadequate ventilation. Monitoring the respiratory rate allows the nurse to detect any signs of respiratory distress or inadequate breathing, enabling them to intervene promptly to prevent serious complications.

D. Level of consciousness: While assessing the client's level of consciousness is essential for overall assessment and monitoring, it is not the priority assessment before administering meperidine. Respiratory depression due to opioid use can occur even when the client is conscious. However, if respiratory depression occurs, it can lead to a decrease in consciousness and potentially unconsciousness, making the assessment of respiratory rate more critical to prevent such complications.

A client with a magnesium level of 3.2 mEq/L has a higher-than-normal magnesium level, indicating hypermagnesemia. The nurse should expect to administer calcium gluconate.

Calcium gluconate is the antidote for hypermagnesemia, as it works to antagonize the effects of magnesium on the body. By administering calcium gluconate, the nurse can help counteract the effects of excess magnesium and normalize the client's magnesium levels.

Let's go through the other options:

B. Calcitonin: Calcitonin is not used to treat hypermagnesemia. Calcitonin is a hormone that regulates calcium and phosphorus levels in the body. It is used in certain conditions, such as hypercalcemia (high calcium levels), but it is not indicated for hypermagnesemia.

C. Magnesium oxide: Magnesium oxide is a form of magnesium supplement, and it is not appropriate for a client with hypermagnesemia, as it would further increase the magnesium level, exacerbating the condition.

D. Magnesium sulphate: Magnesium sulfate is also not appropriate for a client with hypermagnesemia, as it would further elevate the magnesium levels in the body. Magnesium sulfate is often used to treat magnesium deficiency or as a tocolytic agent to prevent premature labor.