A nurse in an emergency department is caring for a client who is unconscious and requires emergency medical procedures. The nurse is unable to locate members of the client's family to obtain consent. Which of the following actions should the nurse take?

A. Assess peripheral circulation hourly. This is correct because clients with SCD are at risk of vaso-occlusive crisis, which can impair blood flow to the extremities and cause tissue ischemia and necrosis. The nurse should monitor for signs of poor circulation such as pallor, coolness, numbness, or pain.

B. Assess the client's mouth every 8 hr. This is correct because clients with SCD are prone to oral ulcers, infections, and dental problems due to chronic anemia and reduced oxygen delivery to the oral mucosa. The nurse should inspect the mouth for lesions, bleeding, inflammation, or infection and provide oral hygiene as needed.

C. Use humidification with oxygen therapy. Administer IV fluids. This is correct because clients with SCD need adequate hydration and oxygenation to prevent sickling of red blood cells and further complications. Humidification helps moisten the airways and prevent dehydration of the mucous membranes. IV fluids help maintain fluid and electrolyte balance and reduce blood viscosity.

D. Raise the knee position on the client's bed. This is incorrect because this can impede venous return and worsen peripheral circulation. The nurse should keep the client's extremities in a neutral position and avoid tight or restrictive clothing or devices.

E. Use an automated blood pressure cuff on the client's arm. Prepare for platelet transfusion. This is incorrect because this can cause mechanical trauma to the arm and trigger a vaso-occlusive crisis. The nurse should use a manual blood pressure cuff and avoid applying pressure to the arm. Platelet transfusion is not indicated for clients with SCD unless they have thrombocytopenia or bleeding.

a. Administer the medication and alert the charge nurse: This choice suggests proceeding with medication administration but also informing the charge nurse. While it's important to communicate with the charge nurse regarding medication administration, in this scenario, there is no indication to hold the medication as the infant's heart rate is within the normal range. Therefore, alerting the charge nurse may not be necessary at this point.

b. Hold the medication and document cardiac assessment: This choice suggests holding the medication and documenting the cardiac assessment. However, since the infant's heart rate is within the normal range for their age, there is no clinical indication to hold the medication. Holding the medication unnecessarily could delay treatment and potentially lead to adverse outcomes if the medication is needed.

c. Administer the medication and document the heart rate.

Since the infant's heart rate of 120 beats per minute falls within the normal range for a 2-month-old, there is no indication to hold the medication. Administering the digoxin as prescribed and documenting the heart rate before administration are appropriate actions. It's important to ensure accurate documentation to track the infant's response to the medication and monitor for any changes in heart rate.

d. Hold the medication and recheck the heart rate in 1 hour: This choice suggests holding the medication and rechecking the heart rate in 1 hour. Again, since the infant's heart rate is within the normal range, there is no clinical indication to hold the medication or delay treatment. Rechecking the heart rate in 1 hour would be unnecessary and could potentially delay necessary medication administration.