University:
Arizona State University
Course:
BIO 181 | Biology
Academic year:

2021
Views:

244

Pages:

4
Author:

Tobsuchtbvow

Endocrine System Physiology - Measuring Cortisol and Adrenocorticotropic Hormone Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Cortisol You correctly answered: d. is a hormone important in the body's response to stress. 2. ACTH You correctly answered: d. is a tropic hormone that stimulates cortisol release. 3. CRH You correctly answered: b. has a tropic effect on the anterior pituitary gland. 4. Cushing's syndrome refers to You correctly answered: c. a hypercortisolism, which could be iatrogenic. 5. A condition of hypocortisolism You correctly answered: d. refers to low levels of cortisol in the blood. Experiment Results Stop & Think Questions: Normally high levels of cortisol would inhibit release of You correctly answered: c. both ACTH and CRH Which hormone(s) stimulate(s) the pituitary gland to release ACTH? You correctly answered: a. CRH Experiment Data: Patient High/Low 1 2 3 Cortisol (mcg/dl) 3.77 31.80 45.62 High/Low Low High High ACTH (pg/ml) 18.17 12.90 85.86 4 5 3.11 54.55 Low High 95.18 18.72 High Low Low Low High Post-lab Quiz Results You scored 50% by answering 3 out of 6 questions correctly. 1. Under normal conditions, if the amount of secreted CRH increases, then You correctly answered: c. the amount of secreted ACTH will increase. 2. Under normal conditions, if the amount of secreted ACTH increases, then You correctly answered: d. the amount of secreted CRH will likely decrease. 3. Under normal conditions, if the amount of secreted cortisol increases, then You correctly answered: b. the amount of secreted ACTH will likely decrease. 4. If a hypersecreting pituitary tumor develops, then an expected outcome is Your answer: b. abnormally low levels of ACTH because of negative feedback. Correct answer: a. a diagnosis of Cushing's disease. 5. If a hypersecreting adrenal cortex tumor develops, then an expected outcome is Your answer: a. a diagnosis of Cushing's disease. Correct answer: b. abnormally low levels of CRH due to negative feedback. 6. A patient's chart lists the diagnosis of Addison's disease. Therefore, you expect Your answer: c. abnormally low levels of CRH. Correct answer: b. abnormally high levels of ACTH. Review Sheet Results 1. Which patient would most likely be diagnosed with Cushing's disease (view Table 4.1 in Experiment Results)? Why? Your answer: Patient #3 because he/she has high levels of both cortisol and ACTH 2. Which two patients have hormone levels characteristic of Cushing's syndrome (view Table 4.1 in Experiment Results)? Your answer: Patient #2 and #5. 3. Patient 2 is being treated for rheumatoid arthritis with prednisone. How does this information change the diagnosis (view Table 4.1 in Experiment Results)? Your answer: The patient has latrogenic Cushing's syndrom which is caused by the medication he/she is taking. 4. Which patient would most likely be diagnosed with Addison's disease (view Table 4.1 in Experiment Results)? Why? Your answer: Patient #4 because he/she has low levels of cortisol and high levels of ACTH