A client with a history of heart failure arrives at the emergency department describing an onset of fatigue and weakness.

The client has been taking spironolactone 50 mg tablets PO every day.

The nurse receives a report from the lab that the client has a serum potassium level of 6.2 mEq/L (6.2 mmol/L). Which intervention is most important for the nurse to implement?

Choice A rationale
The neonatal screening test, which includes thyroxine (T4) and thyroid-stimulating hormone (TSH) levels, is a routine blood test required by law to screen for metabolic deficiencies. This test helps diagnose thyroid conditions. T4 is a thyroid hormone, and too much or too little of it can indicate an issue with the thyroid. TSH is a hormone your pituitary gland makes. It stimulates your thyroid to produce T4 and T3 (triiodothyronine) hormones. A TSH test is the best way to initially assess thyroid function. In fact, T4 tests more accurately reflect thyroid function when combined with a TSH test. Measuring T4 levels might not be necessary in all thyroid conditions. Other names for a T4 test include: Free thyroxine, Total T4 concentration, Thyroxine screen, Free T4 concentration, Free T4 index (FTI)1.

Choice B rationale
While the T4 and TSH tests can help diagnose thyroid conditions, they are not specifically used to determine dosages for thyroid replacement therapy. The dosage of thyroid replacement therapy is usually determined by a healthcare provider based on the patient’s medical condition, weight, age, laboratory test results, and response to treatment.
Choice C rationale
The neonatal screening test is not specifically used for the early detection of intellectual disabilities. However, it is important to note that untreated congenital hypothyroidism can lead to intellectual disabilities. Therefore, early detection and treatment of hypothyroidism generally result in normal growth and development.
Choice D rationale
While these laboratory values can provide data about the thyroid function of the newborn, they do not directly provide data to anticipate delays in growth and development. However, untreated congenital hypothyroidism can lead to growth and developmental delays. Therefore, early detection and treatment of hypothyroidism generally result in normal growth and development.

Choice C rationale

The first step in managing a patient with abdominal pain and distention is to complete a focused assessment. This will help the nurse determine the severity of the patient’s condition and guide subsequent interventions.

Choice A rationale

Elevating the head of the bed can help reduce the risk of aspiration, especially in a patient who has recently vomited. This is particularly important in this case as the patient’s vomit is dark brown, indicating possible upper gastrointestinal bleeding.

Choice B rationale

Sending the emesis sample to the lab is important for determining the cause of the patient’s symptoms. The lab can analyze the sample for the presence of blood or other abnormalities.

Choice D rationale

Offering PRN pain medication is important for patient comfort. However, it should be done after the assessment and initial interventions have been completed. The medication may mask symptoms that could provide important diagnostic information.