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349 Cards in this Set

  • Front
  • Back
for mania
lithium, valproate
need to monitor if long term lithium use
thyroid (TSH), renal (BUN, creat)
PPV and NPV
vary with disease prevalence (sensitivity and spec do not)
femoral neck fractures in elderly
damage medial femoral circumflex artery, leads to avascular necrosis of femoral head
aqueous humor made by
epi cells of ciliary body
decrease aqueous humor production
timolo, b-blockers, acetazolamide
lac operon
inducer that blocks repressor
operon
DNA with at least 2 regulatory sites (promoter, regulator)
i
lac operon regulator
p
initial binding site for RNA polymerase on lac operon
o
lac operon operator
z
b-galactosidase (lactose to glucose) on lac operon
y
permease (permeability to lactose) on lac operon
midsysloic click
mitral prolapse
axillary n damage
anterior shoulder dislocation, fractured neck of humerus
exposure to H. flu or Nesisseria menin.
rifampin (P450 inducer)
GP 11b/IIIa deficiency
Glanzmann thrombasthenia (kids with mucocutaneous bleeds, no platelet clumping)
pentamidine
tx Pneumocystis pneumonia
slipe site mutations
altered function, but same immune reactivity
thyroid gland takes up iodine
against gradient, via sodium iodine symporter
perchorate and thiocynate
compete with iodine for entry into thyroid gland
M cells on Peyer's patches
phagocytose Salmonella, then survives inside macrophages, also colonize gallbladder
PKU
phenylalanine hydroxylase deficiency
positive selection
happens 1st at cortex, can you bind MHC?
negative selection
happens 2nd at medulla, too much self love
thymus events
1. double negative pro-T cells arrive, 2. TCR rearrangement, 3. positive selection at cortex, 4. negative selection at medulla
nitrogen in urea
comes from NH3 and aspartate
most abundant AA in blood
glutamine
cholecystokinin (CCK)
gallbladder contraction, made in duodenum and jejunum
secretin
increases bicarb secretion from pancreas
VIP
made in pancreas, increases GI water secretion, counteracts gastin
motilin
made in small intestine
somatostatin
made in hypothalamus, stomach, GI, pancreas, blocked by vagus stimulation
norwalk gastroenteritis
calcivirus
paramyxoviruses
parainfluenza/croup, RSV, measles, mumps
molluscum contagiosum
pox virus, flesh colored genital papules
high AFP and acetylcholinesterase
neural tube defects
duidenal atresia
abnormal apoptosis, lumen doesn't recanalize
what stabilizes 2ndary structure of proteins
H bonds
how are AA's linked together
covalent peptide bons
a helix to b sheet
H-bond breaking
bonds between cysteine in same polypeptide
disultide bonds, withstands denaturation
B1 and B2, M2
cAMP increases, protein kinase A
M1 and M3
IP3, protein kinase C, increase in Ca++
N-receptors
ligand gated ion channels, salt and calcium in, potassium out
APCs have
MHCII
acidification of lysosomes required for
MHCII expression
all nucleated cells have
MHCI
pulsus paradoxus
cardiac tamponade
pulsus alternans
LV dysfunction
metoprolol
B1 blocker
B1 found
on heart and kidney JG cells
blocks catecholamine induced renin release at kidney
metoprolol
burr cells, helmet cells
traumatic hemolysis
target cells
b-thalassemia
episodic complement mediated hemolysis + pancytopenia
paroxysmal nocturnal hemoglobinuria
R sided murmurs increase with
inspiration
L sided murmus increase with
expiration
all murmurs except for HOCM and mitral prolapse
increase with squat, decrease with standing/Valsalva
handgrip
increases murmurs, not HOCM
Pseudomonas causes
cutaneous necrosis (ecthyma gangrenosum)
neutropenic patients
Pseudomonas
burn patients
Pseudomonas
indwelling catheters
Pseudomonas
necrotizing pneumonia in elderly
Klebsiella
MC gram negative sepsis
E. coli
exotoxin A
blocks protein synthesis, Pseudomonas
exotoxin B
degrades elastin in vessels, Pseudomonas
neuro changes seens only in B12 def
not in folate def
MCV over 100
megaloblastic anemia
chronic indwelling catheter
subclavian or axillary vein thrombosis
sodium metabisulfite
sickling test
asymmetric septal hypertrophy
HOCM
ventricular outflow obstruction
HOCM
binds tubulin, blocks microtubule polymerization
cochicine
primary TB
lower lobes, Ghon focus with hilar lymphadenopathy
reactivation TB
upper lobes
damage to anterior horns + corticospinal tract
ALS
death in AML
aspiration pneumonia
precentral gyrus atrophy
AML
mutation for copper-zinc superoxide dismutase (SOD1)
AML
Friedereich ataxia assoc with
HOCM, DM, scoliosis, foot malformation
dorsal and lateral column denederation
B12 def
chief cells
secrete pepsinogen
gastric pits, glands, parietal cells, chief cells @?
lamina propria
vessels @
submucosa
cause of aortic dissection
HTN
tx AML
riluzole
1st lesion of atherosclerosis
intimal fatty streak
medical calcification
Monckenberg, calcium in muscular arteries, not symptomatic
medical inflammation
arteritis
obliteration of vasa vasorum
thoracic aortic aneurysm in 3 syphilis
stones that are radiolucent (not seen on xay)
uric acid (gout, Lesch Nyhan)
sulfur containing crystals
uric acid
struvite Mg stones
form in alkaline urine, assoc UTI with urease + bugs (Proteus)
fenfluramine
appetite supressant, leads to pulmonary HTN and RV hypertrophy
pentermine
appetite supressant, leads to pulmonary HTN and RV hypertrophy
berry aneurysm
PKD and Ehlers Danlos
cause of aortic aneursym
atherosclerosis
medial calcinosis
does not narrow lumen!
clasp knife spasticity (initial resistance, then release)
UMN
neurofilaments
small cell ca. marker (neuroendocrine)
neuron specific enolase
neuroendocrine
chromogranin
neuroendocrine
synaptophysin
neuroendocrine
vimentin
intermediate filament, sarcoma marker
MAP-kinase pathway
tyrosine kinase, autophosphorylation, SOS, GTP activation of Ras, Ras protein kinase, MAP kinase, enters cell
IP3
causes Ca++ release from endoplasmic reticulum
monitors muscle length
muscle spindles
monotors muscle force
golgi tendon system
tension, but insensitive to stretch
golgi tendon organs
blocks contraction when too much force to prevent muscle damage
golgi tendon organs
A-delta fibers
temperature and acute sharp pain, retracts hand from hot stove
golgi tendon organs
extrafusal skeletal muscle, in series, senses tension changes
muscle spindles
intrafusal muscle, in parallel, sense length changes
mediate stretch and deep tendon reflexes
muscle spindle fibers
Pacinian corpuscles
rapid acting mechanoreceptors in skin
Ruffini's end organs
slow acting mechanoreceptors
blood between dura and arachnoid
subdural
crescent hematoma
subdural
ruptured MMA
epidural
biconvex hematoma
epidural
lucid interval
epidural
rupture of bridging veins
subdural
accerlation/deceleration
subdural
lateral striate arteries
branches of MCA
supply to internal capsule and basal ganglia
lateral striate arteries of MCA
rupture site in HTNsive stroke
lateral striate arteries of MCA
Enchinococcus (tapeworm)
sheep, dogs, affect liver, larva in capillaries
hydatid liver cysts with eggshell calcification
Enchinococcus (tapeworm), do not aspirate cysts! risk of rupture and shock
nodular glomerulosclerosis, PAS +, compression of glomerular tufts
DM nephropathy
MC cause end stage renal disease
DM nephropathy
hyperglycemia in DM leads to
ANP release, increased hydrostatic pressure, glomerular hypertrophy
procainamide causes
drug induced lupus
drug induced lupus doesn't affect
kidneys
prevents progression of DM nephropathy
ACE-Is and ARBs
holosystolic murmur
VSD
tx pulmonary HTN
bosentan (endothelian receptor blocker)
medial hypertrophy + intima fibrosis
pulmonary HTN
endothelin
contricts! stimulates endothelial proliferation, target of bosentan
block ADP platelet aggregation in ischemia and post-stent
ticlopidine and clopidogrel
indomethacin
non-selective COX blocker
binds TNF
etanercept (for RA, etc)
compares odds ratio
case control studies
jugular foramen
CN 9, 10, 11
selective COX2 blocker (inflammation only, no GI ulcers or bleeding)
celecoxib
platelets express
COX1
all COX blockers
cause fluid retention, lead to HTN
COX1 and 2 expressed at
kidneys
acetylates serine residues on platelet COX enzyme
aspirin
acts at proximal convoluted tubule
acetazolamide
carbonic anhydrase inhibitor
acetazolamide
reclaims water at expense of K
aldosterone
5' to 3' exonuclease activity
only DNA polymerase I
removes RNA primer
DNA polymerase I
DNA synthesis of both leading and lagging strands
DNA polymerase III
restrict phenylalanine
PKU
forms 3' OH primer needed to start replication
primase
UV damage
dimerization of adjacent pyrimidine bases, making thymidine dimers
branched AAs
leucine, isoleucine, valine (restrict in maple syrup urine)
restrict tyrosine and phenylalanine
alkaptonuria
restrict methionine, supplement cysteine
homocysteinuria
oval yeast inside macrophages
histoplasmosis
endospores and spherules
cocciodiodespositive germ tube test, yeast and pseudohyphae=candida
antidepressant with no sexual side effects
bupropion
good for depression with insomnia
bupropion
phenelzine
MAO-I
tranylcypromine
MAO-I
normal mucosa to small polyp
APC
mediates polyp size
k-ras
polyp to adenoacarcinoma
p53 and DCC (both required)
p53
usually triggers apoptosis
N-myc
neuroblastoma
highest resistance to air flow
medium/small bronchi
essential tremor
auto. dominant, better with alcohol
tx essential tremor
B-blocker, like propanolol
tx resting tremor of Parkinson's
benztropine
tx EPS of haloperidol
benztropine
positive symptoms of psychosis
haloperdol
tx status epilepticus
diazepam
blocks thyroid peroxidase
PTU
increases antithrombin III
heparin
acetylates platelet COX1, therefore less TBX
aspirin
measure of anesthesia solubility in tissue / induction rate
AV concentration gradient
if high AV concentration gradient
highly soluable, slow onset
measure of potency of anesthetic
MAC (minimal alveolar concentration)
low MAC
high potency
AUG
methionine
to distinguish indirect vs direct hernia
use inferior epigastics; indirect (lateral), direct (medial)
failure of processus vaginalis to obliterate
indirect hernia
passes through inguinal canal, can be compressed by indirect hernia
spermatic cord
site of isotype switching
lymph node germinal centers
isotype switching requires
B-cell CD40 and T cell CD40 ligand CD54
tolerance
unresponsive to self
central tolerance
acquired in fetal thymus during negative selection (too much self love)
peripheral tolerance
clonal anergy, inactivation of self reactive T cells
V,D,J regions
heavy chains
only V and J regions
light chains
recombination of V, D, J regions happens
during B cell maturation in BM
PMNs in synvovial fluid
gout
hyperuricemia alone
does not cause gout
calcium pyrophosphate
pseudogout
calcific tendonitis at rotator cuff tendons
calcium hydroxyapatite crystals
HbA2 elevted
b-thalassemia minor and intermedia
HbA1 reduced
sickle cell
tobacco hypersensitivity
thromboangitis obliterans, tibial and radial artery fibrosis, direct endothelial toxicity
malignant HTN
diastolic BP over 120
granulomatous medial inflammation
temporal arteritis
transmural inflammation with fibrinoid necrosis
PAN
omalizumab
binds IgE receptor on mast cells
bortezomib
blocks proteasomes, tx MM and Waldenstrom macroglobinemia
TNFa blockers
infliximab, etanercept, golimumab
protein A of staph aureus
binds Fc part of IgG, shields bug from phagocytosis
PSGN
type III
superantigens
staph and strep; exotoxin activation of T-cell receptors
feared complication of Kawasaki
coronary artery aneurysms
palm and sole rash in kids with periungal desquamation
kawasaki
tics
Tourette's
S3
high LVEDP in L sided heart failure, normal in young and atheletes
S3 heard best
at apex, L lateral decubitus position
murmus of HOCM
mitral regurg (systolic)
lymph from prostate
internal iliac nodes
lymph from testes
abdominal aortic nodes
skin from umbilicus down, including anus
superficial inguinal nodes
superior bladder
external iliac nodes
inferior bladder
internal iliac nodes
sigmoid colon
inferior mesenteric nodes
hyperplasia of periuretheral and transition zones
BPH
rubbery prostate
BPH
calcitonin
secreted by parafollicular C cells in thyroid, blocks osetoclasts
IFN gamma
granuloma formation + macrophage mediator
stimulates macrophages to release TNF
IFN gamma
leukotriene C4, D4, E4
vasoconstricts, bronchospasm
isotype switching
IL-4
mast cell histamine release, vasodilates
C3a
increases IgE
IL-4
increases IgA
IL-5
activates eosinophils
IL-5
mast cell stabilizers, block degranulation
cromolyn and nedocromil
1st step bronchial constriction
IgE attaches to mast cell
anti-IgE
omalizumab
zileutron
blocks lipoxygenase, decreases leukotriene production
block leukotriene D4 receptors
the -lukast drugs (montelukast, zafirlukast), chronic asthma only
splenic artery originates from
celiac artery, travel above pancreas
vulnerable to ischemia after splenic artery blockage
short gastric arteries that supply gastric tissue, no anastomoses
blood supply to pylorus and prxomal duodenum
gastroduodenal artery
R gastric artery arises from
proper hepatic artery
supply to greater curvature of stomach
R gastroepiploic
MC non-nuclear DNA in eukaryotic cells
mitochondrial DNA (mtDNA), codes proteins for oxidative phosphorylation
UGA
tryptophan in mtDNA
2nd stage Lyme disease
AV block + Bell's palsy
chronic Lyme disease
asymmetric large joint arthritis + encephalopathy
tx Lyme disease
doxy
Lyme disease vaccine
recombinant outer surface protein
blocks xanthine oxidase
allopurinol, results in decreased uric acid synthesis
Tzanck prep
HSV
injured endothelial cells secrete
PDGF, FGF, endothelin-1
outside nucleosome, helps make nucleosome more compact
H1
ubiquitin attaches
covalently to proteins, tagged for degradation in the proteasome
ubiquitin tags proteins for degradation in the
proteasome
reduced end plate potential
myasthenia gravis
progressive weakening of voluntary muscles
MG
improves with cholinesterase inhibitors and rest
MG
autoAb against post-synaptic N Ach receptors, receptor then internalized and degraded
MG
absolute refractory period in muscle in MG is
normal!
excitation-contraction coupling
Ca++ release into intracellular space, bind trponin C, conformation change, actin and myosin allowed to bind
tx MG
cholinesterase inhibitor (pyristigmine), immunosuppression, thymectomy
cholinesterase inhibitors (pyristigmine) cause
overstimulation of M receptors in gut leading to diarrhea
M blockers
scopolamine, hyocyamine
non-selective M agonist
pilocarpine
Downs
meiotic nondisjunction, unbalanced Robertsonian translocation, or mosaicism (2 cell lines)
duodenal atresia
Downs, bilious vomit on 1st day of life, hx polyhydramnios
genomic imprinting
PraderWilli, Angelman
uniparental disomy
complete mole
biological active form of coenzyme A, binds oxaloacetate in 1st step TCA to form citrate
pantothenic acid
valproate during pregnancy leads to
NTD, because blocks folic acid absorption
atrialized RV, downward displacement of tricuspid
lithium in pregnancy
1st trimester, estrogen and prog. made where?
corpus luteum
2nd and 3rd trimesters, estrogen and prog. made where?
estrogen by fetal adrenals, progest. by placenta
prolactin in pregnancy
steadily increases as pregnancy progresses
hCG secreted by
syncytiotrophoblast in 1st trimester
highest hCG at
week 9, then decreases by mid-pregnancy
hCG role
maintains corpus luteum, until placenta takes over
motile gram negative, oxidase positive, non-lactose fermenter
Pseudomonas
endotoxin of Pseudomonas
fever and shock
exotoxin of Pseudomonas
inactivates EF2
granulation tissue in ear canal, tympanic membrane intact
malignant otitis externa
seen in elderly DM patients
malignant otitis externa, exquisite pain
malignant otitis externa can lead to
osteomyelitis of skull base, nerve damage
tx Pseudomonas
cipro
gram negative comma shaped rod, oxidase positive, like alkaline media
cholera
gram negative rods, fast lactose fermenters
E. coil and Klebsiella
non-motile, non-lactose gram negative rod
Shigella
requires Factor X(hematin) and Factor V (NAD)
H. influenza (gram negative)
immobile tympanic membrane, fluid in middle ear
otitis media
cresentric RPGN
Goodpasture (anti-GBM), immune complex mediated, Wegener's (no Ig/complement)
low C3, high antistreptolysin O, high anti-DNaseB
PSGN (2-3 weeks)
painless hematuria in kid, 2-3 days post infection
IgA nephropathy
interstitial nephritis assoc with
increased eosinophils in blood and urine
wedge shaped bands of necrosis in pyrimidal cells of hippocampus and Purkinje cells of cerebellum
hypoxic encephalopathy (cerebral ischemia due to cardiogenic shock)
permanent brain damage occurs after
4-5 minutes
American Southwest/Arizona spore inhalation
coccidiodes
Miss. and Ohio River Valleys
Histoplasmosis
bird and bats poop, caves
Histoplasmosis
asthmatics at risk for
Aspergillus infection
PML RARa fusion gene
AML M3
retinoic acid receptor mutation
AML M3, tx with vitamin A
myeloid precursors in different stages
CML t(9,22)
bcr-abl fusion gene
abnormal tyrosine kinase, CML
c-myc
Burkitt
right heart border
RA
prolactinoma, gastrinoma, parathyroidoma
MEN1
enlarged hilar lymph nodes + epitheloid macrophages + non-caseating granuloma
sarcoidosis
granulomas with central zone necrosis + asthma symptoms
Churg Strauss
tx allergic rhinitis
a-agonists (phenylephrine, xylometazoline, oxymetazoline)
rebound rhinorrhea
a-agonists (phenylephrine, xylometazoline, oxymetazoline)
blocks renin release
B1 blockers (propanolol)
renin-aldosterone regulation
macula densa, intrarenal baroreceptors, B1 receptors on JG cells
to prevent neonatal tentanus
vaccinate pregnant moms with toxoid, IgG crosses placenta
unprediactable on/off response with L-dopa due to
enhanced drug metabolism, sporadic, drug holidays NOT useful
septate hyphae, 45 degree V-branching
Asperigilus
loves blood vessels, spreads in blood
Aspergilus
prebyopia
lens sclerosis, decreased elasticity, can't focus on near objects, in elderly can actually improve distance vision
to focus near
ciliary muscle contracts, lens relaxes, more convex
to focus far
ciliary muscle relaxes, lens flattens
Legg-Calve Perthes
fermoral head necrosis in kids
UV damage leading to rough scaly red papules
actinitic keratosis
PPV
A/A+B
NPV
D/C+D
to assess validity
sensitivity and specificity
nodular uterosacral ligaments, fixed retoversion of uterus, chocolate cysts
endometrosis
endometrial glands in uterine myometrium, enlarged uterus
adenomyosis
multiple small cysts + cortical fibrosis
PCOS
voluntary muscle activity
corticospinal tract, synapse on motor neurons of anterior horn
spinothalamic tract
pain and temp
dorsal column
proprioception and vibration
cause of deathd ue to lightening
cardiac arrhythmia
fern leaf marks on skin, superficial (not deep) skin burns, severe internal injury, skeletal fractures
lightening
dark urine, high bili, recent travel or seafood
acute viral Hep, likely Hep A
diffuse ballooning degeneration of liver, mononuclear infiltrate, eosinophilic apoptotic liver cells (Councilman bodies)
acute viral Hep
nodular regeneration of hepatocytes
cirrhosis due to chronic Hep
chronic hepatitis
Hep B and C
pioglitazone, a TZD
decreases insulin resistance, binds PPAR-gamma transcription regulator (nuclear receptor) in glucose and lipid metabolism
binds PPAR-gamma transcription regulator
pioglitazone (TZD)
adiponectin levels in DM
low
site gastric ulcers
lesser curvature
at lesser curvature and gastric corpus
parietal cells make HCl and IF
at antrum
G cells in glands make gastrin
gp41
anchors gp120, mediates virus-cell fusion