A nurse is caring for a client whose throat culture is positive for group A streptococcus 24 hours after a rapid strep test (RST) was negative. Which of the following actions is the nurse's priority?

Choice A reason:
In primary hypothyroidism, the thyroid gland is underactive and does not produce sufficient thyroid hormones, including Free T4. Therefore, we would not expect an elevation of Free T4 in primary hypothyroidism; instead, its levels would typically be low or normal.

Choice B reason:
Thyroid stimulating hormone (TSH) levels are elevated in primary hypothyroidism because the pituitary gland releases more TSH in an attempt to stimulate the thyroid gland to produce more thyroid hormones. This is a compensatory response to the low levels of circulating thyroid hormones, particularly thyroxine (T4).

Choice C reason:
Serum T3 levels may be low or normal in primary hypothyroidism. T3 is the active form of thyroid hormone and is usually converted from T4. If T4 levels are low, T3 levels may also be affected; however, T3 levels are not the primary diagnostic marker for hypothyroidism and do not typically show elevation in this condition.

Choice D reason:
Serum T4 levels are typically low in primary hypothyroidism because the thyroid gland is not producing enough of this hormone. An elevation of serum T4 would not be expected unless the patient is receiving treatment for hypothyroidism.

Choice A reason:
Venous thromboembolism (VTE) is a condition where blood clots form in the deep veins, usually in the legs. While VTE is a risk following trauma and immobilization, the acute onset of shortness of breath and chest pain is less typical for VTE, which more commonly presents with leg pain and swelling.

Choice B reason:
Hypovolemic shock occurs due to significant blood or fluid loss, leading to decreased blood volume and inadequate circulation. While it can result from a motor-vehicle crash, the client's symptoms of shortness of breath and chest pain are not the most indicative of hypovolemic shock, which typically presents with rapid pulse, low blood pressure, and cold, clammy skin.

Choice C reason:
Compartment syndrome is a surgical emergency where increased pressure within the muscle compartments impairs circulation and nerve function. It presents with severe pain, swelling, and sometimes paralysis of the affected limb, but it does not typically cause shortness of breath or chest pain.

Choice D reason:
Fat embolism syndrome (FES) is a serious complication that can occur after long bone fractures. Fat globules may enter the bloodstream and travel to the lungs, leading to respiratory distress, which can manifest as shortness of breath and chest pain. FES can also cause neurological symptoms and a petechial rash. Given the client's symptoms and recent trauma, FES is a likely complication and requires immediate assessment and intervention.