TL part 2 Flashcards
FHR: >15 bpm decel >30 s after uterine contraction
late deceleration: placental insufficiency
FHR: normal variability
5-25 bpm
85% of the population have [left/right] dominant circulation
right; PDA and AV node supplied by RCA
define grand multiparity
> 5 live or still at W20+
major concern during off-pump CABG
distal anastomosis of grafts to diseased arteries
most comprehensive TEE view for wall motion abnormalities
short axis transgastric view
two categories of obstructive shock
pulmonary vascular and mechanical
mechanism of local visceral pain from pancreatic adenocarcinoma
release of substance P and calcitonin gene-related peptide from vagal afferent neurons
relationship between intraop oliguria and postop AKI
no correlation
occipital horn syndrome is characterized by a deficiency in what
biliary copper excretion; enteral cells accumulate copper
PCV vs VCV: higher mean airway pressure
PCV
PCV vs VCV: higher plateau pressure
VCV
PCV vs VCV: constant inspiratory pressure
PCV
PCV vs VCV: constant inspiratory flow
VCV
consideration for young female receiving platelet transfusion
Rh typing
periop immunosuppression during renal transplant (2)
methylprednisolone and thymoglobulin
most common cardiac defect associated with omphalocele
septal defects (VSD); up to 80%
most common lung pathology in drowning
pulmonary edema
umbilical [artery/vein] better represents the acid/base status of the fetus
vein
polycythemia is defined as a hemocrit > …%
54%; increased risk of perioperative mortality
T/F: congenital muscular dystrophy patients have an increased risk of rhabdo and cardiac arrest due to MH
false; increased risk is true but not attributed to MH
gastroschisis is formed by occlusion of which vessel
omphalomesenteric artery
following donor hepatectomy when does INR peak
postop day 2; normal by day 5
T/F functional residual capacity cannot be determined by spirometry
true
centrifugal vs roller pump: air embolism
vapor-lock the centrifugal pump; roller pump will propel air embolism
timing of diagnosis for peripartum cardiomyopathy
last month of pregnancy up to 5 months after delivery
best type of anesthesia for AV fistula creation to minimize vasospasm
brachial plexus block
optimal flow in AV fistula
600 mL/min
2 primary etiology for hypocalcemia in ESRD
elevated phosphorus complexing with ionized Ca and decreased 1,25 vitamin D
albumin levels in ESRD
low; decreased synthesis and increased catabolism
sympathetic ganglion innervating the pelvic organs
superior hypogastric plexus
anatomical landmark for superior hypogastric plexus
anterior L5 caudal to aortic bifurcation
ganglion impar plexus rests anterior to which structure
sacrococcygeal ligament
first line treatment for congenital myasthenic syndrome
AChEi
mechanism of 4-diaminopyridine
increases amount of ACh released in the synaptic cleft
the hepatic arterial buffer system is regulated by what substance
adenosine
T/F caudal epidural provide relief for only stage 1 of labor
false; stages 1 (cervical dilation) and 2 (expulsion)
pretreatment with what 2 drugs can help mitigate the symptoms of febrile transfusion reaction
acetaminophen and diphenhydramine
mechanism for decreased O2 delivery in hypophosphatemia
decreased 2,3-DPG and left-shift of disassociation curve
half-life of bivalirudin
30 minutes via spontaneous proteolytic cleavage
describe the carotid baroreceptor reflex
increased in BP leads to increased parasympathetic and decreased sympathetic outflow (IX, X)
pathophysiology of preeclampsia involves … arteries
myometrial spiral arteries
preeclampsia: production of thromboxane and nitric oxide by endothelial cells
increased thromboxane production with decreased nitric oxide production
chemical composition of phosgene
COCl2
most common cause of death in hospitalized drowning patients
post-hypoxic encephalopathy
gestational age at which sufficient concentration of surfactant is achieved
W35
neonatal respiratory distress syndrome patient who fails to improve with exogenous surfactant suspect
congenital heart defect or patent ductus arteriosus
MOA for alvimopan
mu-opioid antagonist that does not cross BBB
diphenoxylate is paired with what other drug to decrease its abuse potential
atropine
MOA loperamide
phenylpiperidine opioid that does not cross BBB
opioid receptor responsible for respiratory depression
mu-2
what is the active metabolite of nitroglycerin
nitric oxide
MOA nitric oxide
increase intracellular cGMP
burns >…% have increased mortality due to infection
40
major RF for developing post-herpetic neuralgia
age; 50% in patients >50 years old
volatile with most emergence agitation/delirium
sevo
indication for CPR in VAD patient (2)
MAP < 50 mmHg or etCO2 < 20 mmHg
LVADs are sensitive to acute drops in [preload/afterload]
preload
in supine hypotension syndrome blood bypasses the inferior vena cava and returns to the heart via which pathway
paravertebral epidural veins
describe the hemodynamic changes from aortocaval compression
hypertension in upper extremities; hypotension in lower extremities
route for sux during laryngospasm in patient without IV access
intramuscular (4-5 mg/kg), lingual
magnesium toxicity is a result of blockade of which channels (3)
intracellular and extracellular Ca, and intracellular K
pathology of Lambert-Eaton syndrome
destruction of presynaptic Ca channels
nerve regeneration after cryoanalgesia occurs when
1-3 months after
what variable decreases from West Zone 1 to 3
alveolar pressure
what class of medication should be avoided in upper airway obstruction
NMB
patients with abdominal ascites have lung dynamics similar to [obstructive/restrictive] lung disease
restrictive; all lung volumes decreased but FEV1/FVC unchanged
nerve block that relieves pain only during second stage of labor
pudendal nerve block
HBV transmission rate by contaminated needle
30%
GCS: withdrawal from painful stimulus score
4
initial goal in management of patient with intracerebral hemorrhage is what
SBP < 140
T/F: seizure prophylaxis in all patients with intracerebral hemorrhage
false; only give if signs of seizure
why are children more likley to become symptomatic after venous air embolism
smaller circulatory volume and heart size
how does applying pressure to the abdomen affect preload and afterload
temporary increase in preload and afterload
what is the predicted change in etCO2 during sepsis
decreased due to respiratory compensation for metabolic acidosis
assay for HIT
serotonin release assay
differentiate type 1 vs 2 hepatorenal syndrome
type 1: acute rapid onset with high mortality within 3 weeks
what is the definitive treatment for hepatorenal syndrome
liver transplant
treatment for lower extremity complex regional pain syndrome
serial lumbar plexus blocks
hypoxic ventilatory response is mediated by what?
peripheral chemoreceptors
major contraindication for carboprost
asthmatics