A nurse is teaching a client how to care for his behind-the-ear hearing aids.
Which of the following statements by the client indicates an understanding of the teaching?

Choice A rationale:

Sodium level of 142 mEq/L is within the normal range (135-145 mEq/L) for adults. However, normal ranges for children might vary slightly, but 142 mEq/L is not indicative of dehydration on its own.

Choice B rationale:

Respiratory rate of 22/min is within the normal range for a 3-year-old child (20-30 breaths/min) This rate alone does not provide evidence of dehydration.

Choice C rationale:

Potassium level of 3.9 mEq/L is within the normal range (3.5-5.1 mEq/L) for children. Like sodium, normal ranges for potassium may differ slightly in pediatric patients, but 3.9 mEq/L is not alarming on its own.

Choice D rationale:

Heart rate of 148/min is elevated for a 3-year-old child. Tachycardia is a common sign of dehydration in pediatric patients. This increased heart rate indicates the body's compensatory mechanism to maintain cardiac output in response to decreased blood volume, a typical consequence of dehydration.

Choice A rationale:

Instructing the client to maintain a full bladder is not relevant to an amniocentesis procedure. A full bladder may be necessary for certain other procedures, such as a pelvic ultrasound, but not for amniocentesis.

Choice B rationale:

Administering a tocolytic 30 minutes before the procedure is not a standard practice for amniocentesis. Tocolytics are medications used to suppress uterine contractions and are not routinely administered before this procedure.

Choice C rationale:

Monitoring the fetal heart rate throughout the procedure is essential during an amniocentesis. This helps assess the well-being of the fetus and ensures that the procedure is not causing fetal distress. Any changes in fetal heart rate can indicate potential complications and may require immediate intervention.

Choice D rationale:

Placing the client in Trendelenburg position during the procedure is not recommended for amniocentesis. Trendelenburg position, where the body is supine with the legs elevated higher than the head, is not routinely used during this procedure and may cause discomfort to the client without providing significant clinical benefits.