A nurse is reinforcing teaching about performing a glucose test with an adolescent client who has diabetes mellitus. Which of the following statements by the client indicates an understanding of the teaching?

A. "You should position the car seat at a 30-degree angle." The correct angle for rear-facing car seats is 45 degrees. A 30-degree angle may cause the infant’s head to fall forward, increasing the risk of airway obstruction.
B. "You should place a folded blanket to pad the back of the infant's head." Extra padding behind or around the infant's head is not recommended as it may interfere with the seat’s effectiveness and safety in a crash.
C. "You should use a car seat with a four-point harness." The recommended harness system is a five-point harness, which provides more secure restraint at the shoulders, hips, and between the legs.
D. "You should place the retainer clip at the level of the infant's armpits." Correct placement of the retainer (chest) clip is at armpit level. This ensures that the harness straps stay positioned over the shoulders, reducing the risk of injury during a crash.

Rationale for Correct Choices:

• Dextrose 5% in sodium chloride with 20 mEq potassium chloride/L at 75 mL/hr: The prescription for dextrose 5% with potassium chloride at 20 mEq/L should be clarified because the child's potassium level is elevated at 6.2 mEq/L (normal range is 3.4 to 4.7 mEq/L). Administering additional potassium could worsen hyperkalemia, which could lead to dangerous complications like arrhythmias.
• Laboratory values: The child's potassium level is already high, and adding more potassium via IV fluids could increase the risk of severe hyperkalemia. The nurse should clarify this prescription to avoid potential harm.

Rationale for Incorrect Choices:

• Piperacillin and tazobactam 4g IV every 8 hr: This antibiotic is appropriate for treating pneumonia in a child with cystic fibrosis. No issues with laboratory values or contraindications are present in this case, so clarification is unnecessary.
• Dornase alfa 2.5 mg inhalation every day: Dornase alfa is used to break down mucus in the lungs of children with cystic fibrosis, and it is prescribed appropriately for this patient. The child’s current condition and medications do not warrant clarification for this prescription.
• Pancrelipase 8,000 units with meals: Pancrelipase is indicated for the child’s cystic fibrosis to assist with digestion, and the prescribed dosage seems appropriate for the child’s weight and condition.
• Albuterol nebulizer 2.5 mg inhalation every 4 hr: Albuterol is used for airway clearance, which is appropriate for managing the child's respiratory symptoms. No clarification is needed for this prescription based on the current findings.
• Vital signs: While the child's heart rate and temperature are elevated, they are within expected ranges for the child’s condition (fever, pneumonia, and cystic fibrosis). There is no immediate need for clarification of medications based on vital signs alone.
• Scheduled therapapy: The child is scheduled for chest physiotherapy and airway clearance therapy, which are standard treatments for cystic fibrosis and pneumonia. There is no issue with the scheduled therapies that requires clarification of the medications.
• Diet: The child has been prescribed a high-protein, high-fat diet to support nutritional needs, especially important in cystic fibrosis. The diet does not require any clarification in relation to the prescribed medications.
• Pre-existing conditions: The child’s pre-existing condition of cystic fibrosis is already taken into account in the prescribed treatments, and no adjustment is needed based on the conditions present.