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Thread: Lange Endocrine Physiology Self-Assessment

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    Default Lange Endocrine Physiology Self-Assessment

    Lange Endocrine Physiology Self-Assessment

    Which of the following statements concerning hormonal regulation is correct?
    A. A hormone does not inhibit its own release.
    B. The substrate a hormone regulates does not affect that hormone's release.
    C. Negative feedback regulation occurs only at the level of the anterior pituitary.
    D. Feedback inhibition may be exerted by nutrients and hormones.
    [HIDE]
    The answer is D.
    [/HIDE]
    .
    Last edited by trimurtulu; 01-18-2009 at 10:40 PM.

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    A 73-year-old woman is admitted to the hospital following a bout of severe vomiting and generalized weakness. Initial laboratory values reveal elevated Ca2+ levels. The referring physician tells you that she has breast cancer and her bone scan indicates metastasis to bone. The most likely cause of hypercalcemia is:
    A. Increased PTH production
    B. Increased responsiveness of the PTH receptor 1
    C. Increased PTHrP production
    D. Decreased responsiveness to calcitonin
    [HIDE]The answer is C.[/HIDE]

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    When would plasma insulin levels be expected to be higher?
    A. Following a carbohydrate-rich meal
    B. After intravenous administration of somatostatin
    C. During a surgical procedure
    D. Following vigorous exercise
    [HIDE]The answer is A.[/HIDE]

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    Which of the following can be present in hyperosmolar coma in a diabetic patient?
    A. Low plasma glucose
    B. Low plasma potassium
    C. High plasma pH
    D. High plasma ketones
    [HIDE]The answer is D.[/HIDE]

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    Elevated fasting plasma glucose levels in pregnant women with no history of diabetes may be related to:
    A. Increased estrogen production
    B. Decreased progesterone clearance
    C. Increased hPL/GH-V production
    D. Increased insulin degradation
    [HIDE]The answer is C.[/HIDE]

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    Which of the following neuroendocrine responses contributes to meeting the enhanced energy demands during exercise?
    A. Glucagon stimulation of hepatic glycogen synthesis
    B. Epinephrine stimulation of hepatic glycogenolysis
    C. Norepinephrine-induced stimulation of insulin release
    D. Cortisol inhibition of gluconeogenesis
    [HIDE]The answer is B.[/HIDE]

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    Systemic and hepatic effects of estrogen include:
    A. Increased serum concentrations of total cholesterol and LDL
    B. Increased lipoprotein receptor expression
    C. Increased plasma concentrations of fibrinogen and antithrombin III
    D. Decreased synthesis of thyroxine-binding globulin and transcortin
    [HIDE]
    The answer is B.
    [/HIDE]

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    Activation of the renin-angiotensin-aldosterone system during loss of effective intravascular volume results in all of the following except:
    A. Increased renal sodium and fluid retention
    B. Potentiation of the activity of the sympathetic nervous system
    C. Peripheral venodilatation
    D. Enhanced ADH release
    [HIDE]The answer is C.[/HIDE]

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    The physiologic mechanisms affected by medical strategies for the management of osteoporosis include:

    A. Decreased apoptosis of osteoclasts by bisphosphonates
    B. Increased activation of osteoclast activity by calcitonin
    C. Increased osteoblast differentiation by selective estrogen receptor modulators
    D. Decreased intestinal Ca2+ secretion by vitamin D

    [HIDE]
    The answer is C.

    .
    [/HIDE]

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    Quote Originally Posted by trimurtulu View Post
    Lange Endocrine Physiology Self-Assessment



    hidden content may not be quoted
    .
    thank u very much

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