Pheochromocytoma

Watch this video and do research and answer the questions below:

https://watch.liberty.edu/media/t/1_cl4younu

Cici Menza is a 54-year-old seamstress who started to experience what she thought were menopausal symptoms. She went to a physician and underwent a series of tests. The tests revealed the following:

Blood pressure was severely elevated at 195/105.

Heart rate was increased at 110 beats/min.

A positive 24-hour urinary vanillylmandelic acid (VMA) test that indicated pheochromocytoma (a rare tumor of the adrenal medulla).

A computed tomographic scan showing a 4-cm mass on her left adrenal gland.

1.Which hormones are secreted by a pheochromocytoma?

2.What are the two values reported for arterial pressure, and what is the significance of each value?

3.Why were both the systolic and diastolic blood pressures elevated?

4.Which adrenergic receptors contribute primarily to systolic blood pressure and which contribute primarily to diastolic blood pressure in this situation?

5.Why might you not prescribe propranolol initially to treat a pheochromocytoma?