A nurse is caring for a client who is postoperative following a mitral balloon valvuloplasty.
Which of the following areas should the nurse auscultate to assess the mitral area of the heart?

Choice A rationale

A dosimeter is used to measure the amount of radiation exposure for the healthcare professional, not the client. It is a personal radiation-monitoring device that provides a record of an individual's accumulated dose of ionizing radiation. Attaching a dosimeter to the client's gown is an inappropriate intervention as the client is the source of the radiation, and the dosimeter is designed to protect the healthcare worker by monitoring their exposure.

Choice B rationale

Brachytherapy involves placing a radioactive source close to the tumor. To minimize the radiation exposure of others, a safe distance is maintained. A distance of at least 1 meter (3.3 feet) from the source of radiation is a standard safety measure for visitors and healthcare staff. This inverse square law principle of radiation safety dictates that intensity decreases with the square of the distance from the source, so increasing distance significantly reduces exposure.

Choice C rationale

When a client is undergoing brachytherapy, it is essential to limit the amount of time visitors spend in close proximity. The typical time limit for visitors is 30 minutes per day, not 2 hours. This is a crucial radiation safety measure that adheres to the principle of "Time, Distance, and Shielding.”. Limiting the time of exposure directly reduces the total radiation dose received by the visitor, thereby minimizing potential harm from the radiation source.

Choice D rationale

For a client undergoing brachytherapy, there is a risk that the radioactive implant could be dislodged and expelled from the body. Therefore, straining the client's urine is a critical intervention. This allows the nurse to inspect for and retrieve the implant if it has been inadvertently expelled, ensuring it is not lost and that appropriate safety protocols for handling radioactive materials are followed. This also prevents potential radiation exposure to others. *.

Choice A rationale

Amnioinfusion is the infusion of saline into the amniotic cavity. It is used to treat umbilical cord compression or meconium staining, not to manage seizures. Initiating an amnioinfusion during a seizure would be an inappropriate and ineffective intervention that would not address the underlying physiological cause of eclampsia or the immediate post-seizure recovery.

Choice B rationale

An internal fetal heart monitor is an invasive procedure requiring the rupture of membranes and insertion of a fetal spiral electrode. This is not the priority action following a seizure. Post-seizure priority is maternal stabilization, ensuring a patent airway, and preventing further injury. External fetal monitoring is the standard first-line approach to assess fetal well-being.

Choice C rationale

Calcium gluconate is the antidote for magnesium sulfate toxicity, not a treatment for seizures. Administering calcium gluconate would be inappropriate unless magnesium toxicity (e.g., respiratory depression) is suspected. The primary treatment for eclamptic seizures is magnesium sulfate, which works by depressing the central nervous system and blocking neuromuscular conduction.

Choice D rationale

Placing the client on her side is the priority action following a seizure. This position prevents aspiration of secretions, promotes venous return to the heart, and improves placental perfusion. This is a critical safety measure to protect both the mother and the fetus from further harm and is part of standard post-ictal care. *.