If a pituitary adenoma secretes excessive amounts of prolactin,levels of which of the following hormones will be elevated?
| | TRH |
| | TSH |
| | thyroid hormone |
| | none of the above |
Which of the following will occur if the thyroid is unable tosecrete thyroid hormones?
| | excessive PRL secretion will make TRH levels abnormally low |
| | excessive TRH secretion will stimulate PRL secretion |
| | TSH will stimulate PRL secretion |
| | PRL will stimulate TSH secretion |
Which of the following hormones does not exert an inhibitoryinfluence on the secretion of another hormone as part of a negativefeedback mechanism?
Which of the following would be the best choice for treating apatient with a hyperprolactinemia that resulted from anon-functioning thyroid?
| | administration of a dopamine agonist |
| | a TSH antagonist |
| | TRH injuction |
| | administration of thyroid hormones |
Which of the following would be the best choice for treating apatient with a hypothyroidism caused by a PRL secretingadenoma?
| | TRH injection |
| | administration of a dopamine agonist |
| | administration of thyroid hormones |
| | a TSH antagonist |
The semilunar valves are open throughout which of the followingstages?
| | isovolumic relaxation |
| | isovolumic contraction |
| | ejection |
| | passive filling |
The semilunar valves open at the end of which of the followingstages?
| | isovolumic relaxation |
| | passive filling |
| | isovolumic contraction |
| | ejection |
All four valves are shut during which of the followingstages?
| | isovolumic contraction |
| | passive filling |
| | ejection |
| | active filling |
All four chambers are relaxed during which of the following?
| | ejection |
| | isovolumic contraction |
| | passive filling |
| | active filling |
