Mixed Block Notes 9 Flashcards
Ecthyma gangrenosum is strongly associated with
P aeruginosa
Virulence factors of Pseudomonas in Ecthyma gangrenosum
Exotoxin A (protein synthesis), Elastase, PLC, Pyocyanin (ROS)
Exposure to bats or bird droppins in Ohio or Mississippi area
Histo (resembles tuberculosis)
Chlorthalidone
Thiazide diuretic
Holocrine glands
Associated with sebaceous - entire cells secreted
Apocrine vs Eccrine
Apocrine secretes into hair follicles, Eccrine directly onto skin
Rapid y descent that becomes deeper and steeper during inspiration
Constrictive pericarditis
Timeline of T cell response to MTB
2-4 weeks after infection
Most dangerous complication of UC
Toxic Megacolon
Sacral micturation center
S2-S4 - parasympathetic fibers travel with pelvic nerves
Pontine Micturation Center
Pontine Reticular Formation
Medium chain acyl-CoA DH deficiency causes
Hypoglycemia, Hypoketonemia
Each round of FA beta oxidation produces
1 NADH, 1 FADH2, 1 AcetylCoA
During rapid beta oxidation, the TCA cycle is overwhelmed –>
Shunting acetyl-CoA toward production of ketone bodies
Acetyl-CoA Carboxylase
RLS - first step in FA synthesis
Anti-cholesterol meds that should be used with caution in patients with pre-existing GB disease
Bile acid resins, Fibrates
Parvovirus binds what antigen
Erythrocyte P antigen
EBV envelope glycoprotein gp350 binds what
C3d complement component (CR2 or CD21)
Hydrocephalus, Intracranial calcifications, Chorioretinitis
Congenital Toxo
What type of enzyme is telomerase
RNA-dependent DNA polymerase (RT)
Rifampin monotherapy
Exposure to H flu or N meningitidis
Tx of MAC
Macrloide + Rifampin + Ethambutol
Hurthle Cells
Hashimoto’s
Beta-Galactosidase
Lactose –> Glucose + Galactose
Lac operon
Lack of glucose increases cAMP, Presence of Lactose binds repressor
FFA’s and insulin resistance
Increase resistance, also decrease insulin secretion
Pyogenic granuloma
Polypoid form of capillary hemangioma - Resemble hypertrophic granulation tissue
Cystic hygroma
Endothelium-lined lymph spaces beneath epidermis - Differ from cavernous hemangiomas by absence of luminal vessels
Liver hemangiosarcomas are associated with
Arsenic (pesticides), Thorotrast (contrast), Polyvinyl chloride
Diet recommended for PDH deficiency
Ketogenic (Leucine, Lysine)
Glucogenic AA’s
Methionine, Valine, Histidine (met sugary valiant hunk)
Glucogenic/Ketogenic AA’s
Phenylalanine, Isoleucine, Threonine, Tryptophan
Ketogenic AA’s
Leucine, Lysine
Mutation of Myelin protein gene
Charcot-Marie-Tooth (weakness of foot dorsiflexion)
Additional manifestations of Polycythemia Vera
Peptic ulceration, Pruritis, Gouty arthritis
Measure of fetal lung maturity
Incr ratio of phosphatidylcholine (lecithin) to sphingomyelin ratio
Primary abnormality in Paget’s
Excessive osteoclastic bone resorption
Phenazopyridine
Urinary analgesic - provides symptomatic relief of dysuria, urinary frequency, urgency
Ascorbic acid accelerates what reactions
Hydroxylation, Amidation
Workup of all patients with gastrinoma should include
Serum calcium, PTH, and Pituitary hormones - MEN-1
Anti-MTB drug that requires acidic intracellular environment
Pyrazinamide
INH MOA
Synthesis of mycolic acid
Ethambutol MOA
Blocking Arabinosyl Transferase
Segmented viruses
Reovirus (rota, colti), Orthomyxo, Arena, Bunya
Excessive rise in left atrial systolic pressure (v wave) is characteristic for
Mitral Regurgitation
Differentiate bone-specific ALP
Easily denatured by heat (bone = boil)
Urinary hydroxyproline and deoxypyridinolin excretion
Osteoclast activity (most common measures), also TRAP
Antipsychotic most notorious for causing prolonged QT
Ziprasidone
Cardiac medication that can cause hypothyroidism
Amiodarone
Clozapine acts on what receptors
D4
Prevent intracelllular dehydration in sickle cell
Gardos channel blockers (ca-dep K channel)
Specificity of tPA
Can only bind plasminogen strongly in presence of fibrin = clot-specific
Most common elbow injury in children
Radial Head Subluxation = Tear of annular ligament
Blanching of vein into which NE is being infused + induration and pallor
NE extravasation –> a1 vasoconstriction –> Phentolamine
Respiratory muscarinic antagonists
Ipratropium, Tiotropium, Glycopyrrolate
Eye muscarinic antagonists
Atropine, Homatropine, Tropicamide
GI muscarinic antagonists
Hyoscyamine, Dicylomine
GU muscarinic antagonists
Oxybutynin, Solifenacine, Tolterodine
Flunisolide
Inhaled GC for prophylactic treatment of asthma (bronchial)
Calcific Tendonitis
Deposits of calcium hydroxyaptite crystals in periarticular soft tissues (esp tendons, rotator cuff)
Anti-EGFR Ab
Cetuximab
Muromonab
Anti-CD3 (acute rejection treatment for liver, kidney, heart)
Most common bugs causing sepsis in sickle cell
Pneumococcus, H flu
How does radiation kill cells
DNA ds break, ROS
Secretin stimulates pancreas to release
Bicarb rich, Cl poor fluid (Cl to produce NaCl)
High levels of what increase ESR
Fibrinogen stimulted by Acute Phase Reactants
Pure Red Cell Aplasia is associated with
Parvo B19, Thymoma, Lymphocytic Leukemias
Invasive Mole vs Choriocarcinoma
Hydropic villi and proliferated trophoblast vs Atypical cytotrophoblastic and syncytiotrophoblastic cells w/ foci of hemorrhage and necrosis
Pulsus alternans
LV dysfunction - Beat to beat variation in magnitude of pulse pressure in presence of regular rhythm
Dicrotic pulse
Two distinct peaks - Severe dystolic function
Pulsus parvus et tardus occurs in
Aortic stenosis
Hyperkinetic pulse
Rapid ejection of large stroke volume against decr afterload
Paget disease of nipple
DCIS spreads to nipple skin without having crossed basement membrane
Ductal dilation, Inspissated breast secretions, Chronic granulomatous inflammation in the periductal and interstitial areas
Mammary Duct Ectasia
Most common benign tumor of esophagus
Esophageal Leiomyoma