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Clin Chem > Exam 3 > Flashcards

Exam 3 Flashcards

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1
Q

What disease is characterized by low bone mass

A

Osteoporosis

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2
Q

Laboratory results obtained following serum analysis resulting in the following decreased free T3, decreased T4, decrease TSH, decreased T3, decreased T3 uptake what is the likely diagnosis

A

Secondary hypothyroidism

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3
Q

Essays for free tea measure hormone not bound to thyroxine binding prealbumin, thyroxine binding globulin, and

A

Albumin

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4
Q

The following results consistent with the presence of graves disease

A

Decrease TSH, increased free T4

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5
Q

Serum calcium concentration is controlled by the antagonistic relationship between

A

Calcitonin and pth

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6
Q

Pituitary secretion of adrenal cortical Tropic hormone ACTH will be surprised by elevated levels of

A

Cortisol

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7
Q

What are the three anti thyroid antibodies

A

Anti thyroid peroxidase anti-tpo, thyrotropin receptor antibody, thyroglobulin antibody

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8
Q

Rickets is associated with the deficiency in which of the following vitamins

A

Vitamin D

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9
Q

A 45 year old woman complains of fatigue, heat intolerance, and hair loss. Total and free T4 are abnormally low. If the TSH showed marked elevation, this would be consistent with

A

Primary hypothyroidism

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10
Q

Which of the following steroid is an adrenal cortical hormone

A

Aldosterone

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11
Q

Functions of parathyroid hormone include

A

Elevation of calcium in the circulation, mobilization of calcium from bone

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12
Q

What hormones are secreted by the pituitary

A

L h, prolactin, ADH, TSH

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13
Q

If you shouldn’t has intermittent hypertension and elevated urinary catecholamine metabolites. This may indicate

A

Pheochromocytoma

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14
Q

A male with elevated LH and FSH and low testosterone in serum May likely have

A

Primary hypogonadism

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15
Q

What causes water retention, promotes potassium diuresis, and secretion is regulated by the renin-angiotensin system

A

Aldosterone

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16
Q

A 50cc 6 year old male presents to his doctor with anorexia, fatigue, weight loss and hyperpigmentation of the skin. The doctor orders lab has to be done in the a.m. The patient has notably low cortisol and glucose levels. A presumptive diagnosis for this patient would be

A

Addison’s disease

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17
Q

The hormone that acts on the ovaries to stimulate production of estrogen and the growth of the ovum

A

FSH

18
Q

The recommended screening test for thyroid disease in ambulatory non hospitalized patients is

A

TSH

19
Q

Which of the following autoimmune disorders results in hypothyroidism

A

Hashimoto’s thyroiditis

20
Q

Vasopressin stimulates which of the following

A

Reabsorption of water in the tubules of the kidney

21
Q

The majority of thyroxine is converted into the more biologically active hormone

A

Triiodothyronine T3

22
Q

What common substrate is used in the synthesis of adrenal steroids, including androgens and estrogens

A

Cholesterol

23
Q

Epinephrine and norepinephrine are derived from which amino acid

A

Phenylalanine

24
Q

Which globulin acts as a scaffold for T3 and T4 until they are needed

A

Thyroglobulin

25
Q

In an important metabolite of epinephrine and norepinephrine is

A

VMA

26
Q

Diabetes insipidus is associated with depressed secretion of which of the following hormones

A

ADH

27
Q

Plasma calcium levels may be influenced by

A

Pth, vitamin D, calcitonin

28
Q

List of syndrome is most notable for increased cortisol levels, the presence of a buffalo hump and patients are said to have a moon face

A

Cushing’s

29
Q

The thyroid gland releases all of the following

A

T3, T4 and calcitonin

30
Q

A tumor involving the anterior pituitary gland could cause hypersecretion of all of the following hormones

A

FSH, GH, TSH, prolactin

31
Q

Regulation of calcium and phosphorus

A

Pth

32
Q

What regulates cortisol

A

ACTH

33
Q

What is responsible for lactation

A

Prolactin

34
Q

What is released from the Adrenal medulla

A

Epinephrine

35
Q

What is responsible for ovulation

A

LH

36
Q

What is responsible for sodium reabsorption in kidney

A

Aldosterone

37
Q

What inhibits release of calcium from Bones

A

Calcitonin

38
Q

What stimulates production of RNA and protein synthesis

A

Growth hormone

39
Q

What can initiate glycogenolysis

A

Cortisol

40
Q

What increases water reabsorption in kidneys

A

Antidiuretic hormone

41
Q

What stimulates release of thyroxine and triiodothyronine

A

TSH

Clin Chem (15 decks)

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