Incorrect Questions Flashcards
acute MI on ECG
new development of ST-segment elevation or depression or the development of new T-wave changes such as hyper acute T waves or T wave inversions in two contiguous leads
posterior wall infarct ECG leads
V1-V4
posterior wall infarct vessels
left coronary artery
- circumflex branch
right coronary artery
- posterior descending branch
posterior wall ECG findings
tall R waves
ST-segment depression
upright T waves
inferior wall infarct ECG leads
II, III, aVf
inferior wall infarct vessels
right coronary artery
- posterior descending branch
inferior wall ECG findings
T-wave inversion
ST-segment elevation
lateral wall infarct ECG leads
I, aVl, V5, V6
lateral wall infarct vessels
left coronary artery
lateral wall infarct ECG findings
ST-segment elevation
septal wall infarct ECG leads
V1 and V2
septal wall infarct vessels
left anterior descending artery
- septal branch
septal wall infarct ECG findings
R wave disappears
ST-segment rises
T-wave inverts
anterior wall infarct ECG leads
V2-V4
anterior wall infarct vessels
left anterior descending artery
- diagonal branch
anterior wall infarct ECG findings
poor R-wave progression
ST-segment elevation
T-wave inversion
what causes neck stiffness (meningismus) after subarachnoid hemorrhage
breakdown of blood products within CSF
what is meningismus
neck stiffness indicating inflammation of the meninges
multiple endocrine neoplasia type 2
pheochromocytoma
thyroid carcinoma
hyperparathyroidism
cells for medullary thyroid cancer
thyroid parafollicular cells
what do thyroid parafollicular cells secrete
calcitonin
Atrial natriuretic peptide
seen in cardiac amyloidosis
ß-amyloid
accumulates in neurofibrillary tangles in Alzheimer’s disease
immunoglobulin light chain
amyloidosis associated with multiple myeloma
tuberous sclerosis genetics
autosomal dominant neurocutaneous disorder
presentation of tuberous sclerosis
infants present with convulsive seizures (infantile spasms) developmental delay abnormal skin findings: - angiofibromas (sebaceous adenomas) - ash-leaf spots best seen on Wood lamp - shagreen patches CNS: periventricular tubers heart: rhabdomyoma regina: mulberry tumors, phakomas, Regina hamartomas kidneys: angiomyolipomas
most common kidney finding in tuberous sclerosis
angiomyolipomas
diagnosis of allergic dermatitis
patch testing
cells involved in allergic dermatitis
T cells, NOT IgE
O’Brien’s test is for
superior labral anterior to posterior tear
O’Brien’s test
passively flex patient’s shoulder to 90° then internally rotate shoulder
positive O’Brien’s test
pain and/or clicking when arm is in full internal rotation, but not when arm is in neutral rotation
Speed test for
irritation of the long head of the biceps tendon
α-1 antitrypsin deficiency (A1AD)
inherited condition characterized by genetic defect that causes configurational change in α-1 antitrypsin molecule that prevents its release from hepatocytes
what does α-1 antitrypsin do
protects lung tissue from damage by proteases
ancestry for α-1 antitrypsin deficiency
Northern European
presentation of α-1 antitrypsin deficiency
emphysema - unchecked proteases cause damage to alveolar walls
liver disease
extra pulmonary manifestations of A1AD
necrotizing panniculitis vascular disease vasculitis (c-ANCA positive) inflammatory bowel disease glomerulonephritis
common pathogens in meningitis for <1month
streptococcus agalactiae
escherichia coli
listeria monocytogenes
common pathogens in meningitis for 1 month to 23months
streptococcus pneumonias neisseria meningitidis S. agalactiae haemophilus influenza E. coli
common pathogens in meningitis for 2 years to 50 years
N. meningitidis
S. pneumoniae
common pathogens in meningitis for > 50 years
S. pneumonias
N. meningitides
L. monocytogenes
Aerobic gram-negative bacilli
empiric antibiotic treatment for meningitis <1 month
ampicillin + cefotaxime
OR
ampicillin + aminoglycoside
empiric antibiotic treatment for meningitis 1 month to 23 months
vancomycin + third-generation cephalosporin
empiric antibiotic treatment for meningitis 2 years to 50 years
vancomycin + third generation cephalosporin
empiric antibiotic treatment for meningitis >50 years
vancomycin \+ ampicillin \+ third-generation cephalosporin
why ceftriaxone for meningitis
provides good penetration into CSF
effective against most major causes of adult meningiits
why vancomycin for meningitis
increasing resistance of some bacteria to ß-lactams
why ampicillin for meningitis
increased risk of listeria in patients over 50
descriptions suspicious for malignancy in breast cancer
“linear branching micro calcifications”
“grouped irregular micro calcifications”
descriptions suspicious for benign breast changes
“vascular/skin calcifications”
“rim calcifications”
“large and coarse calcifications”
“smooth round and oval calcifications”
what is the next best step for suspected malignancy in breasts without a palpable mass?
stereotactic core biopsy
when is stereotactic core biopsy indicated?
non-palpable masses diagnosed on mammography
HELLP syndrome
Hemolysis
Elevated Liver
Low Platelets
Risk factors for HELLP syndrome
African American extremes of age multiple gestations molar pregnancy renal disease chronic hypertension
another name for colonic pseudo-obstruction
Ogilvie syndrome
what is pseudo-obstruction
acute dilation of the colon with signs and symptoms of mechanical bowel obstruction without an actual mechanical or anatomic obstruction of flow
signs/symptoms of pseudo-obstruction
abdominal distension abdominal pain nausea/vomiting constipation bowel sounds, hypoactive abdominal tenderness, mild abdominal tympani
who commonly gets pseudo-obstruction
severely ill or post surgical patients with certain medications (calcium channel blockers, narcotics, α-2 antagonists) and/or electrolyte imbalances (hypocalcemia, hypokalemia)
diagnosis of Ogilvie syndrome
clinical history and physical exam, abdominal radiography
abdominal x-rays in Ogilvie syndrome
colonic dilation, usually from cecum to splenic flexure
management of Ogilvie syndrome
urgent NG decompression via NG tube strict NPO IV fluid resuscitation labs to evaluate electrolyte abnormalities abdominal imaging
complications of Ogilvie syndrome
colonic ischemia and/or perforation
sideroblastic anemia
acquired disease caused by an abnormality in iron metabolism
acquired causes of sideroblastic anemia
lead drugs - isoniazid, alcohol, chloramphenicol collagen vascular disease neoplasm
labs in sideroblastic anemia
microcytic
hypo chromic
increased ferritin and iron
TIBC normal or elevated
peripheral smear of sideroblastic anemia
anisocytosis
target cells
poikilocytosis
occasional siderocytes
what is pathognomonic for sideroblastic anemia
siderocytes
what are siderocytes
hypo chromic red blood cells which have coarse basophilic granules visible via Wright or Wright-Giemsa stain
missed abortion
death of a fetus before 20wks with complete retention of products of conception and a closed cervical os
physiologic changes in pregnancy related to thyroid hormones
TBG increases
TSH no change
T4, total increases
T4, free no change
treatment for acute RV infarction
isotonic IV fluids (increase preload, cardiac output, and Pressure)
aspirin
cardiac catheterization
initial treatment of acute pericarditis
NSAIDs plus colchicine
gram stain of strep pyogenes
gram-positive cocci in chains
what is Peutz-Jeghers syndrome
autosomal dominant mutation in a tumor suppressor gene (STK11)
characteristic findings of PJS
2 of:
- 2 or more Peutz-Jeghers-type hamartomatous polyps of the GI tract
- mucocutaneous hyperpigmentation of the mouth, lips, nose, eyes, genitalia, and fingers
- family history of PJS
most commonly increased GI cancer risks in patients with PJS
colorectal
gastric
small bowel
pancreatic
most commonly increased extra intestinal cancer risks in patients with PJS
breast ovary cervix Sertoli cell tumor of the testis lung thyroid
diphyllobothrium latum
cestode (tapeworm) from fish
acquired from ingesting infective larvae in fish, usually freshwater or spend most life in freshwater
larvae killed by flash freezing
causes vitamin B12 deficiency
most common causes of diphyllobothrium latum
salmon, trout, whitefish, herring, cod, freshwater squid, mackerel, and red snapper
sudden-onset severe chest pain that is ripping or tearing in nature, HTN, inter-arm pressure difference, asymmetric pulses
aortic dissection
aortic dissection - ascending
anterior chest
aortic dissection - aortic arch
neck and jaw
aortic dissection - descending
inter scapular area
mycosis fungoides
mc type of cutaneous T-cell lymphoma, a non-Hodgkin lymphoma
cutaneous T-cell lymphoma
malignant disease of helper T-cells within he skin and lymph nodes
clinical features of cutaneous T-cell lymphoma
initially, scaly plaques along with an erythematous, pruritic rash (often mis-dx)
may then progress to tumor stage with at least one tumor (lesion >5mm from skin)
threes phases of mycosis fungoides
1 - patches (nonspecific dermatitis-like patches)
2 - plaques (pruritic plaques and lymphadenopathy)
3 - tumors (likely to ulcerate)
tx of mycosis fungoides
topical (radiation, photochemotherapy, photodynamic therapy, and laser surgical excision)