Test 46 Flashcards
most common location of brain germinomas
pineal region
allows for prenatal dx of NTDs
AFP
ACHesterases
do carcinoid tumors confined to the intestine cause carcinomid syndrome?
NO
secretory products are metabolized by hte liver before entering the systemic circulation
intestinal carcinomids that metastisize
release vasoactive substances taht avoid first pass metabolism> flushing, diarrhea, bronchospasm
diminished relaxation of pharyngeal muscles during swallowing
cricopharyngeal muscle dysfxn>
ZENKERS diverticulum
oropharyngeal dysphagia, coughing, choking, recurrent aspiration
Zenker diverticulum
repjlication for HBV
DS DNA>
+RNA>
DS DNA
Uses REVERSE TRANSCRIPTION
ulcerative mass in anal canal in man w/ HIV
HPV> increases risk of anal carcinoma
potential complication in pt w/ psoriasis
deforming joint disease
sharply demarcated salmon colored plaques w/ silvery scale
psoriasis
depolarization
massive influx of Na ions
repolarization
closure of VG Na channels and opening of K channels
reversible cholinergic (PNS!) antagoinist that acts selectively on muscarinic receptors
Atropine
what can reverse atropine
phsyostigmine
increases Ach in synaptic cleft
blind as a bat mad as a hatter red as a beat hot as a hare dry as ab one bowel and bladder lose their tone heart runs alone
atropine