Endo Flashcards

1
Q

Which diabetic pts should be on a statin

A

All, provided they are over 40 and have at least one other cv rf

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2
Q

Bp management in diabetics

A

Strict control to <140/80, first line aceis and arbs

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3
Q

Which diabetic pts should get the pneumonia vaccine

A

All above age 19

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4
Q

In hhs, glucose is above

A

600

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5
Q

Serum osmolality in hhs is

A

> 320 mosm/kg

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6
Q

Is there acidosis in hhs

A

No

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7
Q

Tx of hhs

A

Aggressive fluids, electrolyte replacement, insulin

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8
Q

What do you see on biopsy in a pt with diabetic nephropathy

A

Kimmelstein wilson nodules

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9
Q

Most Common cause of death in diabetic patients

A

Cv dz

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10
Q

Tx diabetic gastroparesis with

A

Metoclopramide or erythromycin

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11
Q

Criteria for metabolic syndrome

A

Weighht- need three out of five

Waist Expanded
Impaired Glucose
Htn
Hdl decreased
Tgs increased
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12
Q

Can tbg be elevated in pregnancy and estrogen admin

A

Yes

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13
Q

Difference between hyperthyroid and thyrotoxicosis

A

Hyperthyroid-increased synthesis of t3/t4

Thyrotox-increased levels of t3/t4

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14
Q

Graves is the __ form of hyperthyroidism. ___ increase synth of t3/t4

A

Autoimmune

Thyroid stimulating antibodies

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15
Q

Thyroid storm is a life threatening form of ___ that may cause ___, ___ and ___

A

Thyrotoxicosis

Af, fever, delirium

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16
Q

Tx of thyroid storm

A

Antithyroid drugs (methimazole, propylthiouracil), then iodine, iv esmolol and steroids and admit to icu

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17
Q

Symptomatic tx of hyperthyroid

A

B blocker

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18
Q

As blood sugars decrease to 250-300 in tx of dka, what should you add

A

5% dextrose to decrease risk of hypoglycemia

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19
Q

___ tbg levels in pregnancy lead to ___ free t3/t4 levels and __ tsh

A

Increased
Decreased
Increased

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20
Q

What should you do to levothyroxine dose in preggos

A

Increase

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21
Q

Hashimoto thyroiditis is associated with what antibodies

A

Antithyroglobulin and antithyroid peroxidase (anti-tpo)

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22
Q

What kind of hernia can you see in congenital hypothyroid

A

Umbilical

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23
Q

What lipid abnormalities can you see in hypothyroid

A

High ldl

High tgs

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24
Q

In asymptomatic hypothyroid treat with levothyroxine if tsh is above

A

10 mU/L

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25
Q

Increased serum alk phos level with normal ggt level points to what etiology

A

Bone, not liver

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26
Q

Bone pain and hearing loss, think

A

Paget’s disease

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27
Q

Low serum phosphorus feedback loop

A

Low serum phosphorus converts 25 vit D to 1,25 vit D, which causes release of phosphate from bone matrix and increased intestinal reabsorption

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28
Q

Lab values in paget dz of bone (alk phos, calcium, phosphate)

A

High serum alk phos, normal calcium and phosphate

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29
Q

Pth works on what two organs to increase calcium

A

Renal tubular cells to reabsorb calcium and bone to stimulate calcium release

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30
Q

Parathyroid hormone stimulates production of 1,25 vit d, which causes calcium reabsorption from the

A

Gut

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31
Q

Stones, bones, moans, groans and psychic overtones indicate what

A

Hypercalcemia

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32
Q

Tx of hypercalcemia

A

Fluids then loop diuretics and iv bisphosphonate

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33
Q

Pth ___ phosphorus

A

Decreased

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34
Q

Primary hyperparathyroidism reveals __calcemia, __phosphotemia, and ___calciuria

A

Hyper
Hypo
Hyper

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35
Q

In secondary hyperparathyroidism, If etiology is renal failure what is phosphate level

A

High

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36
Q

What is familial hypocalciuric hypercalcemia

A

Inherited disorder due to mutations in calcium sensing receptor present in parathyroid and kidney. Have normal pth, hypercalcemia and hypocalciuria. Asymptomatic and no tx necessary

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37
Q

What is cinacalcet

A

Lowers serum pth levels and is used for hyperparathyroidism due to pts with renal failure or who can’t undergo surgery

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38
Q

What is Sheehan syndrome

A

Pituitary infarction secondary to postpartum hemorrhage

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39
Q

Most common cause of Cushing syndrome

A

Prolonged tx with exogenous corticosteroids

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40
Q

Difference between Cushing syndrome and Cushing diseAse

A

Syndrome: too much cortisol

Disease: too much cortisol from acth producing pit adenoma

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41
Q

Dx of Cushing syndrome

A

Dexamethasone suppression of plasma cortisol, or measure 24h urinary free cortisol

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42
Q

How to determine if Cushing syndrome is due to adrenal tumor or acth dependent Cushing syndrome

A

Measure plasma acth and cortisol after dexamethasone suppression test. If acth is suppressed, it’s an adrenal tumor

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43
Q

Water deprivation test: what happens in psychogenic polydipsia

A

More concentrated urine

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44
Q

Water deprivation test: what happens in central and nephrogenic di

A

Pts excrete a high vol of inappropriately dilute urine

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45
Q

What will desmopressin do in central di

A

Decrease urine output and increase urine osmolarity

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46
Q

What will desmopressin do in nephrogenic di

A

No effect

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47
Q

First line tx of nephrogenic di

A

Salt restriction and take in water

Thiazides can help

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48
Q

Very common cause of euvolemic hyponatremia

A

Siadh

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49
Q

If pt is severely hyponatremic (<110) or is symptomatic (seizing, coma), what should you do

A

Cautiously give hypertonic saline, monitor for central pontine myelonolysis

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50
Q

Tx of siadh

A

Fluid restrict

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51
Q

Cause of siadh

A

Persistent adh release independent of serum osmolality

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52
Q

Acth secretion is __ in primary adrenal insufficiency

A

Increased, this causes the hyperpigmentation

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53
Q

Most common cause of secondary AI

A

Cessation of long term glucocorticoid tx

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54
Q

Aldosterone is ___ in primary AI, ___ in secondary AI

A

High

Normal

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55
Q

Acth is ___ in primary AI, ___ in secondary AI

A

High

Low

56
Q

Pheochromocytomas are associated with what syndromes

A

Men 2A and men 2B

57
Q

Why don’t you do b blockade first in pheochromocytomas

A

Unopposed a adrenergic stimulation can lead to severe hypertension

58
Q

Medullary carcinoma is associated with ___ syndromes, so screen for ____, ____ before you remove thyroid

A

Men 2A/B

Vma and metanephrines

59
Q

Elevated ___ level is dx of 21 hydroxylase deficiency

A

17 hydroxyprogesterone

60
Q

Tx of 21 hydroxylase def

A

Immediate fluid resus and salt repletion

61
Q

Pts with hhs or dka have __ levels of serum potassium but __ levels of total body potassium due to ___

A

Normal or elevated

Low

Due to excessive urinary potassium loss caused by osmotic diuresis

62
Q

Insulin therapy for hhs can ___ serum potassium levels and cause ___

A

Lower

Severe hypokalemia

63
Q

What happens to pituitary gland in Sheehan syndrome

A

Ischemic necrosis of the gland

64
Q

Approx 40% of calcium is bound to

A

Albumin

65
Q

Serum calcium decreases by ___ with every 1g/dL decrease in serum albumin

A

0.8 mg/dL

66
Q

Can myopathy occur with hypothyroidism

A

Yes

67
Q

Thyrotoxicosis causes what four cv findings

A

Tachycardia
Systolic htn
Widened pulse pressure
Afib/glitter

68
Q

Hyperthyroidism causes a ___ in svr

A

Decrease

69
Q

Increased bp in thyrotoxicosis is due to

A

Increased myocardial contractility

70
Q

Rapid onset hirsutism suggests very high levels of ___ possibly due to ___. Check __ and ___ levels

A

Androgen
Androgen-secreting neoplasm
Testosterone and dheas

71
Q

Androgen producing tumor-where am I?: high testosterone and normal dheas

A

Ovarian source

72
Q

Androgen producing tumor-where am I?: high dheas

A

Adrenal tumor

73
Q

Hypothyroid can cause ___lipidemia

A

Hyper

74
Q

First dx step of hypercalcemia after correcting for albumin

A

Measure pth level

75
Q

Clinical features of neonatal thyrotoxicosis

A

Warm moist skin, tachycardia, poor feeding, irritability, poor weight gain, low birth weight

76
Q

Cause of neonatal thyrotoxicosis

A

Transplacental passage of maternal anti-tsh receptor antibodies

77
Q

Diagnosis of neonatal thyrotoxicosis

A

Maternal anti-tsh receptor antibodies >500%

78
Q

Tx of neonatal thyrotoxicosis

A

Self resolves in three months

Short term can use methimazole and b blockers

79
Q

Can hashimoto thyroiditis cause recurrent pregnancy loss

A

Yes

80
Q

Optimization of glycemic control in dm is associated with reduced risk of micro or macro vascular complications

A

Micro

81
Q

Can hypocalcemia cause hyperreflexia

A

Yes

82
Q

Tx of acute hypocalcemia

A

Ivcalcium gluconate/chloride

83
Q

Carpal spasm, trousseau sign, is a sign of

A

Hypocalcemia

84
Q

How does transfused blood cause hypocalcemia

A

Citrate in transfused blood bonds ionized calcium. If you have liver issues, can’t metabolize citrate.

85
Q

Porphyria cutanea tarda is associated with what condition primarily

A

Hep c

86
Q

Pt with htn and hypokalemia: high renin and high aldosterone

A

Secondary hyperaldo

87
Q

Pt with htn and hypokalemia: low renin and high aldo

A

Primary hyperaldo

88
Q

Pt with htn and hypokalemia: low renin and low aldo

A

Non-aldo causes: cah, Cushing for example

89
Q

Four causes of secondary hyperaldo

A

Renovascular htn
Malignant htn
Renin secreting tumor
Diuretics

90
Q

Hyperaldo presents with

A

Htn, headache, polyuria, muscle weakness

91
Q

In hyperaldo, labs show ___kalemia and metabolic ____.

A

Hypokalemia

Metabolic alkalosis

92
Q

Refeeding syndrome is due to a surge in ___ after body resumes anabolism

A

Insulin

93
Q

What electrolytes are depleted in refeeding syndrome

A

Phosphate
Mag
Potassium

Because rapid insulin secretion starts glycogen, fat and protein synthesis again, which needs these electrolytes and rapidly depletes already small stores of them

94
Q

Deficiencies in potassium and magnesium in refeeding syndrome can cause

A

Cardiac arrhythmia s

95
Q

Aggressive refeeding with electrolyte repletion can cause __ failure

A

Cardiopulmonary

96
Q

Aldosterone escape in hyperaldo limits what two things

A

Edema and hypernatremia (despite htn and increased blood volume)

97
Q

Hypomag is very common among hospitalized ___

A

Alcoholics

98
Q

How can hypomag cause hypocalcemia

A

By inducing resistance to pth and decreasing pth secretion

99
Q

Hyperthyroid causes __ osteoclastic activity and bone ___, resulting in ___calcemia

A

Increased
Resorption
Hyper

100
Q

Can you see hypercalciuria in hyperthyroid

A

Yes, due to neg feedback due to hypercalcemia

101
Q

Fetal hyperthyroid can be seen in moms who have___, not toxic adenoma causing hyperthyroid

A

Graves

102
Q

Do you get high fever in thyroid storm

A

Yes

103
Q

Tx of thyroid storm

A

B blocker, ptu, glucocorticoids

104
Q

Do you get high ck in thyroid storm

A

Yes

105
Q

Most common cause of congenital hypothyroid

A

Thyroid dysgenesis

106
Q

Pt with acute serious illness, normal T4 and TSH but low T3 likely has

A

Euthyroid sick syndrome

107
Q

Can hyperthyroid cause myopathy

A

Yes

108
Q

For primary hyperparathyroid who should get parathyroidectomy

A

Pts with symptomatic hypercalcemia

109
Q

Acth deficiency, hypothyroid and infertility + loss of libido in men and amenorrhea in women

A

Hypopit

110
Q

Can hashimoto thyroiditis cause vitiligo

A

Yes

111
Q

Best markers of resolution of dka

A

Serum anion gap or beta hydroxybutyrate level

112
Q

Manifestations of men1 syndrome (three)

A

Pituitary adenomas, primary hyperparathyroid, pancreatic/gastrointestinal neuroendocrine Tumors (eg gastrinoma, vipoma)

113
Q

Desmopressin is first line treatment for central or nephrogenic di

A

Central

114
Q

Bad side effect of ptu and methimazole

A

Agranulocytosis

115
Q

In case of getting exogenous thyroid hormone, thyroglobulin will be

A

Low

116
Q

Most androgen producing adrenal tumors overproduce

A

Dhea

117
Q

Myopathy in Cushing syndrome is characterized by weakness in the __ muscles and is due to __

A

Proximal

Direct catabolic effects of cortisol on skeletal muscles leading to muscle atrophy

118
Q

How do toxic adenomas cause hyperthyroid

A

Autonomous thyroid production without tsh stimulation

119
Q

Most common cause of oculomotor (cn iii) nerve palsy in adults

A

Ischemic neuropathy due to poorly controlled dm

120
Q

Ischemic cn iii palsy presentation

A

Ptosis, down and out gaze, preserved pupillary response

121
Q

Una is __, pt is __volemic, pt is ___tonic and hyponatremic

Gi losses

A

Una<10
Hypovolemic
Hypotonic

122
Q

Una is __, pt is __volemic, pt is ___tonic and hyponatremic

Skin losses

A

Una<10
Hypovolemic
Hypotonic

123
Q

Una is __, pt is __volemic, pt is ___tonic and hyponatremic

Diuretics

A

Una>10
Hypovolemic
Hypotonic

124
Q

Una is __, pt is __volemic, pt is ___tonic and hyponatremic

Cirrhosis, chf, nephrotic syndrome

A

Una<10
Hypervolemic
Hypotonic

125
Q

Una is __, pt is __volemic, pt is ___tonic and hyponatremic

Aki
Ckd

A

Una>10
Hypervolemic
Hypotonic

126
Q

Urine osmolality is __, pt is __volemic, pt is ___tonic and hyponatremic

Siadh, Addison’s, thyroid

A

Urine osm>100
Normovolemic
Hypotonic

127
Q

Urine osmalilty is __, pt is __volemic, pt is ___tonic and hyponatremic

Psychogenic

A

Urine osmolality<100
Normovolemic
Hypotonic

128
Q

Two kinds of hypernatremia

A

Low urine osmolarity (<300)
And
High urine osmolarity (>600)

129
Q

Nephrogenic di is a __natremic state with __ urine osmolarity

A

Hyper

Low (100-300)

130
Q

Central di is a __natremic state with __ urine osmolarity

A

Hyper

Low (<100)

131
Q

Na+ gain and extrarenal losses are a __natremic state with __ urine osmolarity

A

Hyper

High

132
Q

Go losses due to vomiting causes __chloremia, __kalemia and ____ bicarb

A

Hypo
Hypo
Elevated

133
Q

Pt, especially young one, with htn and hypokalemia, suspect

A

Primary hyperaldo

134
Q

Best screening test for hyperaldo

A

Early-morning plasma aldosterone concentration (pac) to plasma renin activity ratio

135
Q

Estrogen ___ tbg

A

Increases