Endocrine Flashcards Preview

First Aid > Endocrine > Flashcards

Flashcards in Endocrine Deck (254)
Loading flashcards...
61

Does an increase or decrease in pH increase the affinity of albumin for calcium?

increase pH = increase affinity

62

Which 2nd messenger is used by ANP?

cGMP

63

Which 2nd messenger is used by GnRH?

IP3

64

Which 2nd messenger is used by oxytocin?

IP3

65

Which 2nd messenger is used by hCG?

cAMP

66

Which 2nd messenger is used by ADH?

cAMP

67

Which 2nd messenger is used by MSH?

cAMP

68

Which 2nd messenger is used by PTH?

cAMP

69

Which 2nd messenger is used by TRH?

IP3

70

Which 2nd messenger is used by TSH?

cAMP

71

Which 2nd messenger is used by Gastrin?

IP3

72

Which 2nd messenger is used by CRH?

cAMP

73

Which three hormones use RTKs?

Prolactin/Cytokines/GH

74

Which 2nd messenger is used by glucagon?

cAMP

75

Which 2nd messenger is used by GHRH?

cAMP

76

Which 2nd messenger is used by calcitonin?

cAMP

77

Does SHBG bind free estrogen?

no

78

What do decreased levels of SHBG do in women?

hirsutism

79

What do increased levels of SHBG do in men?

gynecomastia

80

Which receptor can thyroid hormone upregulate?

β1

81

Why does excess TSH increase basal metabolic rate?

increased expression of Na/K ATPase

82

What does TSH do to fat levels?

increase lipolysis

83

By which two mechanisms does TSH increase glucose levels?

glycogenolysis

gluconeogenesis

84

When would thyroxine binding globulin levels decrease?

hepatic failure

85

What two situations would thyroxin binding globulin levels increase?

pregnancy or OCPs

86

What enzyme converts T4 into T3 in the periphery?

5'-Deiodonase

87

What is the Wolff-Chaikoff effect?

excess iodine interrupts thyroid peroxidase

88

What enzyme(s) are/is inhibited by propylthiouracil?

TPO and 5'-Deiodonase

89

What enzyme(s) are/is inhibited by methimazole?

TPO

90

'Taper' means what drug?

Prednisone