PGY2 Flashcards
indications for escharotomy
circumferential chest or neck burns with increased airway pressures, hypoxemia, difficulty with ventilation, or circumferential extremity burns with decreased doppler signal, pulse oximetry < 90% distally in limb, pain/loss of sensation/delayed cap refill
MGMT of airway/mechanical ventilation in burn patients
RSI unless suspicion of airway obstruction (if signs of obstruction, awake intubation), succ is contraindicated if burn is > 5 days post-burn, avoid barotrauma: limit plateau pressure to 35 mmHg, PEEP can be helpful,
MGMT of cyanide poisoning
hydroxocobalamin 5 g IV in 250 cc NS or 70 mg/kg in pediatrics
mechanism of cyanide poisoning
binds to iron on cytochrome complex in mitochondria, the last step of oxidative phosphorylation, effectively shutting down mitochondria and ATP production resulting in tissue hypoperfusion
lab findings in cyanide poisoning
metabolic acidosis, lactate > 10
carbon monoxide poisnoning sx
headache, flu, coma, death
lab findings in CO poisoning
metabolic acidosis,
10 DDx for pancreatitis
biliary colic, cholangitis, cholecystitis, hepatitis, PNA, pericarditis, MI, PUD, pericarditis, bowel obstruction, mesenteric ischemia, AAA, ectopic
10 causes of pancreatitis
gallstones, alcohol, autoimmune, idioapthic, drugs, trauma, ERCP, viral infections (mumps, EBV), congenital - “IGETSMASHED” - idiopathic, gallstones, ethanol, trauma, steroids, mumps/viruses, autoimmune, scorpion stings, hypercalcemia/lipidemia/hypothermia/hypotnesion, ERCP/emboli, drugs (azathoprine, NSAIDs, diuretics)
MGMT of acute pancreatitis
volume resusication with RL, analgesia, electrolyte correction, correct glucose, treat nausea, early feeding, U/S for ERCP/MRCP, antibiotics if septic or infection
acute complications of pancreatitis
acute hemorrhage (GI bleeding), ileus (bowel obstruction), peripancreatic fluid collection, acute necrotic collection, SIRS/sepsis, atelectasis, renal failure, multisystem failure/shock/dic, bowel necrosis, pancreatic pseudocyst, hyperglycemia/hypocalcemia, plerual effusion, glucose intolerance
revised atlanta classification of acute pancreatitis
mild: no organ failure or complications, moderate: transient organ failure or local/systemic complications, severe: persistent organ failure
causes of chronic pancreatitis
toxic-metabolic: ETOH, obstructive, genetic, autoimmune, post-necrotis acute pancreatitis
causes of false positive amylase elevation
parotitis, malignancy, trauma, burns, liver disease, cholecysitis, renal failure, HIV, pregnancy
infectious causes of pancreatitis
mumps, coxsackie, HIV, CMV, EBV, varicella, TB, salmonella, campylobacter, legionella, mycoplasma, ascaris
encapsulated bacteria (risk if no spleen)
streptococcus pneumoniae, H.flu, neisseria meningitidis, E.coli, klebsiella, salmonella typhi
causes for elevated d-dimer
malignancy, trauma, smoking, infection, sepsis, trauma, vascular (AAA rupture/AD), elderly age, ACS, DVT, DIC, AFib, pre-eclampsia, stroke
2 types of venom in rattelsnakes
necrotoxic vs. neurotoxic
MGMT of rattlesnake bites
move away from snake, call 911, removing constricted item and immobilizing limb, DO NOT USE TOURNIQUET AND SUCK OUT VENOM,
physical features of crotalidae (venomous pit-vipers)
elliptical pupil, tail structure of single rows, triangle head and presence of fants
definition of priapism
ischemic penis; treat within 4-6 hours tp prevent impotence and ischemia
2 types of priapism
low flow: ischemic (venous obstruction - true emergency), high flow (non-iscehmic: arterial inflow)
causes of priapism
intra-cavernosal injection (triple mix), PDE5 inhibitors, antihypertensives, neuroleptics, cocaine
AAP diagnostic criteria for AOM
acute onset, inflammation of middle ear, effusion of middle ear (dull, bulging, air fluid)
definition of recurrent otitis media
3+ episodes/6 months or 4+ episodes/12 months
causes of acute otitis media
viral vs. bacterial: viral - RSV, influenza, rhinovirus, adenovirus, bacterial: pneumo, h/flu, moraxella catarrhalis, GAS, chlamydia in < 6 months
criteria to treat AOM
under 6 months, perforated TM, severe illness (39+, irritable, severe symptoms), symptoms > 48 hours
criteria for watchful waiting in AOM
follow-up visit in 24-48 hours, everyone else > 6 months old
MGMT of AOM in peds
amoxicillin 75 - 90 mg/kg/day BID, if PCN allergy, consider cefuroxime 30 mg/kg/day BID for 5 days if 2+ years old of uncomplicated disease vs. 10 days if < 2 years old, recurrent AOM or perforated TM
complications of AOM
intratemporal vs. intracranial: intratemporal - hearing loss, cholesteatoma, TM perforation, labryinthiitis, facial nerve paralysis; intracranial: meningitis, brain abscess, extradural abscess, subdural empyema, latera venous sinus thrombosis
MGMT of otitis externa
debride with curette or suction, ciprodex drops 3 BID x 5 days
MGMT of otitis externa malignant
ciproflox 750 mg PO BID x 6 weeks, ENT referral
5 causes of sudden hearing loss
infectious (meningitis/encephalitis), acoustic neruoma, hypercoaguloability, DM, pregnancy, ASA, AG, curmen, AOM, FB, barotrauma
MGMT of SNHL
prednisone 60 mg daily x 10-14 days, ENT referral, MRI to r/o acoustic neuroma
CENTOR criteria
must be older than 3 years old, no cough, exudative tonsills, nodes, temp > 38, often young < 15 and rarely old > 45 yo; if 2-3: rapid strep test and culture; if 4+: antibiotics
lemierre’s syndrome definition
oropharyngel infection followed by anaerobic sepsis with fusobacterium necrophorum resulting in thrombus of internal jugular vein
epiglottitis exam finding most sensitive and specific
tenderness on palpation of hyoid bone
ludwig’s angina definition
deep space neck infection of sublingual, submental and submandibular spaces
acute necrotixing ulcerative gingivitis definition
“trench mouth”: bacterial infection of the gingiva, ulceration with grey pseudomembranes and easy bleeding due to fusobacterium
serious complication from acute necrotizing ulcerative gingivitis
necrotizing stomatitis
true or false: streaking lymphangitis favours nec fasciitis vs. cellulitis
false: it favours cellulitis
8 clues to suggest early nec fasciitis
pain out of proportion (la belle indifference though where they have little pain), eccymoses or skin necrosis, tense edema (skin feeling hard or wooden), bullae/blister, palpable crepitus, localized skin hypoesthesia (nerve destruction), rapidly spreading rash, SIRS
MGMT Abx for nec fasciitis
pip-tazo + vancomycin
soft signs of penetrating neck trauma
minor hemoptysis, hematemesis, dysphagia/dysphonia, subcut air, non-expanding hematoma, proximity wound, oropharngeal bleed
hard signs of penetrating neck trauma
rapidly expanding and pulsatile hematoma, massive hemopytisis, air bubbling from wound, severe hemorrhage, shock not responding to fluids, decreased or absent radial pulses, vascular bruit or thrill, airway compromise/stridor, massive subcut emphysema
button battery ingestion in child MGMT
do not induce vomiting, administer honey if > 1 year old
ABx MGMT for H. Pylori
bismuth pepto bismol, metronidazole, tetracycline, PPI
lipase cut off in pancreatitis
more sensitive than amylase, 3x of upper limit is abrnomal
dx of acute pancreatitis
- abdo pain; 2. lipase 3x upper limit, 3. imaging/CT findings consistent
definition of severity in pancreatitis
mild: no organ failure, moderate: organ failure < 48 hours, severe: organ failure > 48 hours
2 types of acute pancreatitis
edematous (acute peripancreatic collection –> pseudocyst after 4 weeks) vs. necrotizing (acute necrotic collection, walled off necrosis)
encapsulated bacteria (for asplenia/SCD) pts
SHiNE KISS - strep pneumo, H.flu, N.meningiditis, Klebsiella, salmonella, e.coli, groupB strep
Name of pseudoaneurysm formation from pulmonary artery erosion of TB lesion
Rasmussen’s aneurysm
complications of pulmonary TB
hemoptysis, PTX, pleural effusion, empyema, airway TB, pericarditis, superinfection with fungal
DDx for pulmonary TB
bacterial PNA, fungal (histoplasmosis, MAC, mycobacerium kansaii, , PJP, nocardia and rhodococcus in HIV patients
DDX for cavitary lesions other than TB
klebsiella PNA, staph pyogenes, aspiration, MAC, wegener’s granulomatosis, upper lobe bullous disease due to emphysema or neurofibromatosis
extrapulmonary TB
lymphatics (most common), bone/joint, pleura, meninges, peritoneum
Term for lymphadenitis tuberculous
scrofula - seen often in children; painless, red ,firm mass in lymph node
term for spinal TB disease
Pott’s disease - loss of white striples of vertebral endplates due to destruction of subchondral bone; paraspinal cold abscesses forming in 50+% of cases spreading up and down spine: complication - SCC
classic finding of urine in renal TB infections
sterile pyuria , can be acidic
genital TB
prostatitis/epididymitis/orchiitis can be seen in renal TB patients in men or infection sprading to endometrium, oaries and cervix in women
Acute disseminated TB definition
active hematogenous spread of MTB to several organs
miliary TB definition
occurs when host is unable to contain recently acquired or dormant TB infection - seen often in children after primary infection or older adults/HIV patients
other lab findings associated with acute dissemianted TB or miliary TB
SIADH –> hyponatremia, meningitis
CNS TB affected individuals
only 6% of all cases of extrapulmonary TB invovles CNS, seen in newborns - 4 yo children often