all Flashcards

1
Q

Medullary thyroid cancer is associated with what gene mutation?

A

RET (MEN 2A, 2B)

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2
Q

Papillary thyroid cancer, melanoma, and non-Hodgkin lymphoma is associated with what gene mutation?

A

BRAF

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3
Q

Follicular lymphoma and adenoma is associated with what genetic mutation?

A

PPAR-y/PAX8 fusion

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4
Q

Osmotic myelinolysis is a side effect of what?

A

Raising sodium too high. This causes demylination of neurons int he brain

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5
Q

Vitamin E (tocopherol) deficiency manifests with what symptoms

A

Hemolytic anemia - low haptoglobin
Posterior column - proprioception
Spinocerebellar tract - Romberg test

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6
Q

Vitamin B6 deficiency manifests as what kind of anemia?

A

Sideroblastic microcytic anemia

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7
Q

Method of action of tetanospasmin

A

Blocks the release of glycine and GABA from inhibitory cells

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8
Q

Rheumatoid factors target which part of IgG

A

Fc region of IgG

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9
Q

Rheumatoid arthritis is associated with which HLA?

A

DR4, DR1

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10
Q

Patient went to Chile and now having fever, headaches, facial lympadenopathy, and periorbital swelling

A

Chagas disease

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11
Q

The diencephalon gives rise to what part of the brain

A

Third ventricle

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12
Q

Method of action of Entacapone

A

Peripherally inhibits COMT which reduces methylation of levodopa to dopamine

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13
Q

Method of action of carbidopa

A

Decreases the conversion of levodopa to dopamine in the periphery

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14
Q

Method of action of Ropinirole

A

Dopamine agonist. Used in young parkinsons patients

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15
Q

MEthod of action of amantadine

A

NMDA antagonist, increasing release of dopamine and decreasing reuptake

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16
Q

MAO-B inhibitors method of action

A

Decrease dopamine degredation in the brain