A nurse is preparing a 24-hour urine specimen for a client who is suspected to have pheochromocytoma

Tachycardia and hypertension are correct. Tachycardia and hypertension are unexpected findings, which can indicate the occurrence of thyroid storm following removal of the thyroid gland, especially if the client was in a hyperthyroid state prior to the surgery. Thyrotoxic, or thyroid storm, is a life-threatening condition with a sudden onset that includes tachycardia, fever, sweating, restlessness, and tremors. Congestive heart failure and pulmonary edema can develop rapidly and lead to death.

Laryngeal stridor and hoarseness are correct. Laryngeal stridor and hoarseness are unexpected findings and can indicate swelling in the area of the surgery or damage to the laryngeal nerve. This should be reported to the provider before respiratory distress develops.

A positive Trousseau's sign is correct. A Positive Trousseau's sign is an indication of hypocalcemia, which is a complication of thyroid removal. This occurs when the parathyroid glands are also removed and regulation of serum calcium is impaired.

A respiratory rate of 16/min is incorrect. This is within the expected reference range.

A negative Chvostek's sign is incorrect. An expected finding is a positive Chvostek's sign (facial muscle spasm after tapping the facial nerve in front of the ear), which indicates hypocalcemia, a complication of thyroid removal. This occurs when the parathyroid glands are also removed and regulation of serum calcium is impaired.

Which complication may arise if pheochromocytoma is left untreated?

If left untreated, pheochromocytomas/paragangliomas may progress to cause serious, life-threatening complications including heart muscle disease (cardiomyopathy), bleeding in the brain (cerebral hemorrhaging) or the accumulation of fluid in the lungs (pulmonary edema).

Which piece of equipment would be used to assess an individual with pheochromocytoma?

Imaging tests MRI , which uses radio waves and a magnetic field to produce detailed images. M-iodobenzylguanidine (MIBG) imaging, a scanning technology that can detect tiny amounts of an injected radioactive compound taken up by pheochromocytomas or paragangliomas.

Which of the following laboratory values is consistent with diabetic ketoacidosis?

Laboratory findings consistent with the diagnosis of diabetic ketoacidosis (DKA) include blood pH < 7.3, serum bicarbonate < 18 mEq/L, anion gap > 10 mEq/L and increased serum osmolarity.

Is adrenaline produced in the adrenal cortex?

The adrenal medulla is located inside the adrenal cortex in the center of an adrenal gland. It produces “stress hormones,” including adrenaline.