©FYNDLAY EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
BIO 669 Endocrine Disorders Exam
Questions And Answers (Guaranteed A+)
A decrease in hypothalamic function will actually lead to an increase in what hormone? -
answer✔Prolactin
SIADH Diagnosis Criteria - answer✔Normal adrenal and thyroid function must be present in
order for a pt. to be diagnosed with SIADH
SIADH Clinical Manifestations - answer✔Dyspnea upon exertion
Wt. gain (but NO peripheral edema)
Confusion
Muscle twitching
*Symptoms associated with decreasing levels of Na+
Diabetes Insipidus Manifestations - answer✔Polyuria
Polydipsia
Diluted urine
Sheehan Syndrome - answer✔Infarct of the pituitary following postpartum period
Panhypopituitarism - answer✔Deficiency of all pituitary hormones including: ACTH, TSH, FSH,
LH, and GH
What is a common cause of hyperpituitarism? - answer✔A benign, slow-growing pituitary
adenoma
Hyperpituitarism Manifestations - answer✔Headache and fatigue
Visual changes
Hyposecretion of neighboring pituitary hormones
1|Page
, ©FYNDLAY EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
Acromegaly - answer✔Hypersecretion of growth hormone from the anterior pituitary after
puberty, leading to enlargement of extremities
Bones become thicker and wider
Giantism - answer✔A condition of overgrowth due to hyperpituitarism (increased GH) occurring
before puberty and during the growing years
Hypersecretion of Prolactin Manifestations in Females: - answer✔Amenorrhea
Galactorrhea
Hirsutism
Osteopenia
*In males, increased levels of prolactin causes hypogonadism and erectile dysfunction
Thyrotoxicosis: - answer✔Increase in HR, BP, and metabolism
Graves Disease Manifestations (Hyperthyroidism): - answer✔Pretibial myxedema: thickness in
skin, non-pitting edema in shin area
Exophthalmos (increase in pressure within the eye cavity)
Hyperthyroidism Causes: - answer✔Caused by antibodies that act like TSH
*Antibodies bind to thyroid which causes an increase in T3 and T4 which feedbacks to the
hypothalamus to decrease TSH from the anterior pituitary - yet you still have rising T4 and T3
levels
Hyperthyroidism Labs: - answer✔Increased TH
Increased T4 and T3
Decreased TSH
What can help differentiate the causes of hyperthyroidism? - answer✔A radioactive iodine scan
Hypothyroidism
Hashimoto's Disease - answer✔AKA Autoimmune Thyroiditis
Caused by autoimmune antibodies attacking the thyroid and leading to inflammation and
destruction of the gland
2|Page
ALL RIGHTS RESERVED.
BIO 669 Endocrine Disorders Exam
Questions And Answers (Guaranteed A+)
A decrease in hypothalamic function will actually lead to an increase in what hormone? -
answer✔Prolactin
SIADH Diagnosis Criteria - answer✔Normal adrenal and thyroid function must be present in
order for a pt. to be diagnosed with SIADH
SIADH Clinical Manifestations - answer✔Dyspnea upon exertion
Wt. gain (but NO peripheral edema)
Confusion
Muscle twitching
*Symptoms associated with decreasing levels of Na+
Diabetes Insipidus Manifestations - answer✔Polyuria
Polydipsia
Diluted urine
Sheehan Syndrome - answer✔Infarct of the pituitary following postpartum period
Panhypopituitarism - answer✔Deficiency of all pituitary hormones including: ACTH, TSH, FSH,
LH, and GH
What is a common cause of hyperpituitarism? - answer✔A benign, slow-growing pituitary
adenoma
Hyperpituitarism Manifestations - answer✔Headache and fatigue
Visual changes
Hyposecretion of neighboring pituitary hormones
1|Page
, ©FYNDLAY EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
Acromegaly - answer✔Hypersecretion of growth hormone from the anterior pituitary after
puberty, leading to enlargement of extremities
Bones become thicker and wider
Giantism - answer✔A condition of overgrowth due to hyperpituitarism (increased GH) occurring
before puberty and during the growing years
Hypersecretion of Prolactin Manifestations in Females: - answer✔Amenorrhea
Galactorrhea
Hirsutism
Osteopenia
*In males, increased levels of prolactin causes hypogonadism and erectile dysfunction
Thyrotoxicosis: - answer✔Increase in HR, BP, and metabolism
Graves Disease Manifestations (Hyperthyroidism): - answer✔Pretibial myxedema: thickness in
skin, non-pitting edema in shin area
Exophthalmos (increase in pressure within the eye cavity)
Hyperthyroidism Causes: - answer✔Caused by antibodies that act like TSH
*Antibodies bind to thyroid which causes an increase in T3 and T4 which feedbacks to the
hypothalamus to decrease TSH from the anterior pituitary - yet you still have rising T4 and T3
levels
Hyperthyroidism Labs: - answer✔Increased TH
Increased T4 and T3
Decreased TSH
What can help differentiate the causes of hyperthyroidism? - answer✔A radioactive iodine scan
Hypothyroidism
Hashimoto's Disease - answer✔AKA Autoimmune Thyroiditis
Caused by autoimmune antibodies attacking the thyroid and leading to inflammation and
destruction of the gland
2|Page
