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115 Cards in this Set
- Front
- Back
What will the labs look like in a pt with spherocytes?
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increased Hg concentration and increased RBC osmotic fragility (anorexic cells)
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Meckel's Diverticulum is due to a persistence of which embryologic structure?
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omphalomesenteric ducts (vitelline or yolk stalk)
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What test is used to show a Meckel's diverticulum?
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Tc Pertechnetate test (Technechium 99 scan)
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What is the MOA of warfarin?
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Inhibits Vitamin K-dependent clotting factors II, V, VII, IX, X, C, S
WEPT (Warfarin, Extrinsic, PT) Give Vit K for OD |
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What is the MOA of heparin?
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catalyzes the rxn of Antithrombin III (intrinsic system, PTT)
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alpha wave on EEG?
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awake person with closed eyes
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beta wave on EEG?
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awake person with open eyes who is alert
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delta wave on EEG?
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deepest, non-REM sleep (stage III-IV)
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sleep spindles and K somplex on EEG?
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deeper stage II sleep
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theta waves on EEG?
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light, stage I sleep
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presentation of uterine leiomyomas?
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aka, uterine fibroids; beingin neoplasm presenting with menstrual irregularity, infertility
more prevalent in AA |
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What is contained in the omental foramen?
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common bile duct, hepatic a and hepatic portal vein; obstruction causes cholestasis and conjugated bilirubinemia
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Sx of pericarditis?
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retrosternal chest pain radiating to back and arms; pain worsens on inspiration or when lying down
high pitched grating sound heard at LL sternal border |
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M phase cancer drugs?
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Vincristine, Vinblastine
bind to tubulin and prevent polymerization of microtubules |
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SFX of Vincristine and Vinblasinte?
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Vincristine: neurotoxicity and paralytic ileus
Vinblastine: blasts bone maorrow (myelosuppression) |
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Treatment for monoclonal gammopathy of undetermined significance (MGUS)?
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no tx, can't determine who will progress to multiple myeloma
MGUS is the presence of a M-protein spike in pts s/ MM, Waldenstrom's or other myeloproliferative disorders |
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Inheritance and deficiency in Hunter's Synd?
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XLR
iduronosulfate sulfatase |
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What distinguishes Hurler's synd from Hunter's syndrome?
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Hurler's has corneal clouding, Hunter's does not
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Inheritance, Chromosome and sx of VHL?
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AD
chr 3 increased risk for renal cell carcinoma, hemangioblastomas or cyctic neoplams of the liver ans pancreas |
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Which cells display Class II MHC's?
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antigen presenting cells (dendritic, macs, B-lymphs)
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What bug causes Rheumatic fever?
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Group A beta hemolytic Strep?
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What is pathognemonic for Rheumatic fever on microscopy?
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Aschoff bodies - interstitial imflammation with fragmented collagen, mononuclear cells and multinucleated cells
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Signs of DiGeorge?
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CATCH-22: Cleft palate, Abnl facies, Thymic aplasia, Cardiac defects, Hypocalcemia
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First line treatment for PCP?
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Pentamidine
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The pudendal n originates from which nerve roots?
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S2-S4
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Function of enkephalins?
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secreted from the GI tract and nervous system to stimulate smooth muscle resting tone and contractions (opiod peptide)
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Pathognemonic for Wilson's Dz and tx?
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Kayser-Fleisher rings
D-penicillimine |
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MOA of Tacrolimus?
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immunosuppressive drug that binds to FK-binding protein, inhibiting the secretion of IL-2 and cytokines --> blocks activation of T cells
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MOA and use for Imipramine?
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decreses the amount oftime in stage 4, slow wave sleep; used for bed wetting
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Inheritance, defect in Pompe's Disease
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AR, glycogen storage disorder
defect in a 1,4-glucosidase toxic levels of glucose in cytoplasm and blood |
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G protein in a2 receptors
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Gi = decrease cAMP -> decrease sym outflow -> decreases BP
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Insulin receptor function?
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tyrosine kinase receptors; insulin binds to B subunit causing conformational change and autophosphorylation of B subunits
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MOA of statins?
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HMG-coA reductiona inhibitors
cannot convert HMGcoA to melavolonic acid - thre rate limiting step in cholesterol biogenesis |
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What form of Hb is present when CO2 is bound?
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T (taut) form
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Sx of Pellagra?
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4 D's:
dermatitis, dementia, diarrhea, death B3 deficiency |
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Virus that is a major couse of epidemic conjunctivitis?
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Adenovirus
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Description of adenovirus?
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naked, icosohedral, dsDNA, linear
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Infections that can lead to Guillan-Barre?
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C. jejuni, H, influ, CMV, EBV, M. pneumoniae, VZV
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Drug that often causes C. diff?
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Clindamycin (blocks protein synthesis at the 50S subunit of the ribosome)
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Classic appearance of a mesothelioma?
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Ferruginous body = asbestos coated with hemosidderin
Hx of shipbuiling, plumbers |
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Drug class of amiodarone and sfx?
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antiarrhythmic
can cause pulmonary fibrosis |
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translocation of Burkitt's?
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t(8;14) c-myc
Chr. 8 |
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connection of a TE fistula?
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lower esophagus and carina
sx = choking, cyanosis during food intake; air in stomach on XR |
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Mediator of leukocyte rolling?
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E-selectin
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Mediator of leukocyte tight binding?
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I-CAM 1
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Fxn of bcl-2?
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inhibits apoptosis
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Sx of prune belly syndrome?
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bilateral cryptorchidism and abscence or hypotrophy of abdominal wall, long dilated prostatic urethras, thick walled bladders
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Fxn of a chemical antagonist?
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Binds directly to an agonist preventing its interaction with its target
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SFX of ketokonazole?
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inhibits ACTH and CYP450
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Layers of the epidermis?
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Californians Like Girls in Bikinis
Corneum Lucidum Granulosum Spinosum Basalis |
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Where is the potential space in the pericardium?
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between the visceral and parietal layers - where fluid goes in cardiac tamponade
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Where do you see psammoma bodies?
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papillary carcinoma of the thyroid, cystadenoma of the ovary, meningioma, mesothelioma
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MOA of SSRI's?
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block serotonin reuptake at the presynaptic neurons
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MOA of ovabain?
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Na-K-ATPase inhibitor (like dig)
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Nerve that innervates muscles to dorsiflx the foot?
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Deep peroneal n
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Strucutres of the anterior compartment?
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Deep peroneal n., anterior tibial a. -> dorsal a of the foot
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What is incresed and what is the defect in Hyperchylomicronemia (Type I)?
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TG and cholesterol
lipoprotein lipase deficiency |
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What is incresed and what is the defect in Hypercholesterolemia (Type II)?
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increased LDL
decreased LDL recptors in liver |
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What is incresed and what is the defect in combined hyperlipidemia (IIb)?
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TG, LDL, VLDL
hepatic overproduction of VLDL |
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What is incresed and what is the defect in dysbetalipoproteinemia (III)?
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TG and Cholesterol
altered Apolipoprotein E |
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What is incresed and what is the defect in hypertriglyceridemia?
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TG only
hepatic overprdxn of VLDL |
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What is incresed and what is the defect in mixed hypertriglyceridemia?
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TG and cholesterol
increased prodxn and decreased clearance of VLDL and chylomicrons |
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Where is the brain defect in Parkinson's? Tx?
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decreased dopa signalling from the substantia nigra
Tx: ablation of part of globus pallidus |
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Fnx of the VPM of thalamus?
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all sensory modalities of the face
supplied by branches of the p. cerebral a. |
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Fnx on the VPL of the thalamus?
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all sensory modalities of the body
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Location of the tumor in a Pheo?
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chromafin cells of the adrenal medulla
Sx: due to episodic release of neurosecretory granules containing catecholamines |
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MOA of methotrexate?
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Tx for large B-lymph lymphomas; blocks dihydrofolate reductase in S phase
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HNPCC is due to a defect in what tye of gene?
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DNA mismatch repair
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Tx of choise for absecnce seizures?
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Ethosuximide
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Sx and px for dermatomyositis?
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rash of violet discoloration over the eyelids and periorbital edema; erythematous patches over joints
6-45% have underlying visceral cancer |
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Enzymes involved in apoptosis?
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capsisasins
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Fnx of Leukotriene B4?
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chemotactic agent for neutrophils; produced via the 5-lipogenase pathway
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Sequelae of measels?
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can cause subacute sclerosing panencephalitis; measels can have a 6-8 year laent interval
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Common mutation among the thalassemias?
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Intron 5' mutation: affects splicing
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Common symptom in brucella infections?
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undulant fever: fever leaves int he morning and returns in the evening
B. meletensis: goat, sheep, camels B. abortus: cattle |
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Highest and lowest osmolarity in the nephron?
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highest (400): thin descending limb
Lowest (100): distal convoluted tubule |
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Class and MOA of pyridostigmine?
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AChesterase inhibitor for treatment of MG. Inhibits AChas in the synaptic cleft; duration of 3-6 hrs (longer that neostigmine)
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Trismus?
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Lock jaw; tetanus
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Tenesmus?
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sensation of the need to empty the bowel with pain and cramping with little stool to pass; inflammatory bowel disease
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Sx of cerebral hemisphere damage?
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appendicual ataxia with poor finger nose and heel to shin tests IPSILATERAL to the side of the lesion
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SFX of hydrochlorothiazide?
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hyperlipidemia, hyperuricemia, hypercalcemia and hyperglycemia
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Method of vanco resistance in Enterococcus faecalis?
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transfered via plasmis that convert D-ala D-ala to D-ala D-lac
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1st line drug for COPD that is least likely to induce a cardiac arrhythmia?
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Ipratopium
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Treatment for status epilepticus and tonic-clonic seizures?
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Phenytoin
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antibodies in Hashimoto's?
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Anti-microsomal
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Positively charges amino acids?
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Arginine, lysine, and histidine
(A and L found in histones) |
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Drugs for the treatment of brain tumors?
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lipophilic nitrosoureases (carmustine and lomustine)
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Mediator for diapedesis?
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Type IV collagenases
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Mediator for leukocyte migration?
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cytokines
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Carcinoma is a tumor of wha origin?
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Epithelium
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Sarcoma is a tumor of what origin?
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mesenchyme (muscles, bone,fat, blood vessels)
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For the following disease, state the oncogene: CML
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abl
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For the following disease, state the oncogene: Burkitt's
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c-myc
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For the following disease, state the oncogene: follicular and indifferentiated lymphomas
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bcl-2
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For the following disease, state the oncogene: breast, ovarian, gastric carcinomas
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erb-b2
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For the following disease, state the oncogene: colon carcinoma
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ras
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For the following disease, state the oncogene: lung cancer
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l-myc
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For the following disease, state the oncogene: neuroblastoma
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n-myc
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For the following disease, state the oncogene: Men Types II and III
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Ret
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For the following disease state the associates tumor suppressor gene: Wilm's tumor
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WT1 (Ch11)
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For the following disease state the associates tumor suppressor gene: Neurofibromatosis I and II
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NF 1 and 2
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For the following disease state the associates tumor suppressor gene: Pancreatic Cancer
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DPC (18)
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For the following disease state the associates tumor suppressor gene: Colon Cancer
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DCC (18)
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Tumors with increased b-hCG?
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Hydatidiform moles, choricarcinoma, Gestational trophblastic tumors
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Tumors with tartrate-resistant acid phosphatase?
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TRAP: Hairy cell leukemia (B cell)
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SIADH is a paraneoplasm for what cancers?
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small cell lung CA
intracranial neoplasms |
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Hypercalcemia is a paraneoplastic disorder for what cancers?
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small cell lung CA, renal cell CA, breat CA, multiple myeloma, bone mets
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Polycythemia is a paraneoplastic disorder for what cancers?
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renal cell Ca, hemangioblasotma
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Fnx of C3b?
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Opsonization
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Fnx of C5a?
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neutrophil chemotaxis, anaphylaxis
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Fnx of C3a?
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anaphylaxis
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Most common complement deficiency?
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C2 - linked to SLE
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Most common B cell deficiency?
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Selective IgA:
no class switching in heavy chain Sx: recurrent pulmonary infections |
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Classic signs of multiple myeloma?
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lytic lesions
rouleaux formaiton Bence Jones proteinuria - large tubular casts(light chain remnants) |
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Enzyme defecient in Chronic Granulomatous disease?
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NADPH oxidase (XLR); Sx: opportunisitc infecitons
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