uWorld 53 Flashcards

1
Q

what is the cardiac tissue conduction velocity in the different parts of the heart

A
"Part AT VENTure AVenue"
Perkinje system: 2.2 m/sec
ATrial muscle: 1.1 m/sec
VENTricular muscle: 0.3 m/sec
AV node: 0.05 m/sec
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2
Q

what is lysozyme

A

an antimicrobial enzyme that can be found in many secretions
saliva, tears, granules in neutrophils

hydrolyzes bonds in the peptidoglycan cell walls of bacterial organisms

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3
Q

what autosomal dominant disorder is due to sporadic mutation from advanced paternal age

A

ACHONDROPLASIA

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4
Q

majority of overdose deaths in the US is due to what

A

OPIODS

this is regardless of if the patient is on antidepressants or antianxiolytics- if they use drugs and OD its most likely OPIOIDS

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