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General 2
Q bank: Randomly Generated 2
Question | Answer |
---|---|
Leukemia, Lesch-Nyhan syndrome, chronic renal disease, and alcohol intake can all cause what disorder? | Gout; needle-like crystals that are strongly negatively birefringent |
HLA-A3 is associated with what disorder? | primary hemochromatosis |
HLA-B27 is associated with what disorders? | psoriatic arthritis, ankylosing spondylitis, inflammatory bowel disease, and Reiter syndrome (arthritis, urethritis, conjunctivitis) |
HLA-DR2 and DR3 are associated with what disorder? | SLE |
HLA DR4 is associated with what disorders? | Rheumatoid arthritis and DM type 1 (along with DR3) |
Adenosine deaminase, defective IL-2 receptor, and nonsense RAG mutations are all causes of this disorder. | Severe combined immunodeficiency (SCID); chronic diarrhea, ear infections, pneumocystis jirovecii pneumonia, and oral candidiasis are common (note: X linked is the IL-2 form) |
What arteries would likely be lacerated in a midshaft versus a surgical neck fracture of the humerus? | Midshaft: brachial artery; Surgical neck: posterior circumflex artery (axillary nerve might also be injured here) |
What types of amyloid are associated with heart disease and rheumatoid arthritis, medullary carcinoma, myelomas and B-cell lymphomas? | Heart disease and RA: AA amyloid; Medullary carcinoma: AE; Myeloma and b-cell lymphoma: AL |
What's the difference in 5HT2 and 5HT3 blocking drugs? | 5HT2 blockade is the mechanism of atypical antipsychotics (clozapine); 5HT3 blockade is the mechanism of the antiemetic ondansetron |
What's the difference between 5HT1A agonists and 5HT1D agonists? | 5HT1A agonist is the mechanism of the anxiolytic buspirone; 5HT1D agonist is the mechanism of the migraine drug sumatriptan |
Patient presents with 3 month weight loss, diarrhea, and flatulence. Biopsy reveals atrophied villi in jejunum. What is the confirmatory test? | Anti-gliadin antibodies; celiac sprue |
Phentolamine has what effect on systemic vascular resistance and heart rate? | Alpha-adrenergic receptor; it will decrease SVR, HR will increase, however, due to baroreceptor response to drop in blood pressure |
What effect will epinephrine have on SVR and heart rate in the presence of phentolamine? | HR will increase; Alpha activity will be blocked by phentolamine, but beta 2 will dilate arterioles decreasing SVR (this is in contrast to the increase in SVR seen w/out phentolamine) |
What effect will norepinephrine have on SVR and heart rate in the presence of phentolamine? | HR will increase; alpha activity will be blocked by phentolamine so there will be neither an increase or a decrease in SVR (unlike epinephrine which has beta 2 activity and would decrease SVR) |
What effect will isoproterenol have on SVR and heart rate? | beta-adrenergic agonist; HR would increase and SVR would decrease due to beta 2 dilation of arterioles |
What test should be performed to determine if a mother has anti-Rh IgG? | Indirect coombs test (maternal serum mixed with Rh-positive RBC's); direct coombs tests whether baby's RBC's agglutinate in the presence of anti-Rh IgG |
What immunoglobulins cross the placenta, IgG, IgM, or both? | IgG |
Patient has dry mouth and dry eyes, what autoantibodies can be excpected in this patient? | Sjogren syndrome; anti-Ro (SS-A) and anti-La (SSB) antinuclear antibodies and rheumatoid factor |
Patient has calcifications on the elbow, thick hardened skin especially over the hands, and complains of numbness in the fingers. What autoantibodies can be expected in this patient? | Anti-centromere antibodies; patient has CREST syndrome, other physical findings may include E- esophageal dysfunction and T- telangiectasias |
Anti-smith antibody and anti-double stranded DNA antibody are associated with what syndrome? | SLE |
A patient has memory deficits, what region of the brain is likely injured? | bilateral hippocampal gyri |
Patient has difficulty with speech and verbal material. What area of the brain is likely dmaged? | Left hemisphere |
Patient is socially inappropriate and incapable of planning things out. What is the area of the brain that is likely injured? | frontal lobes |
How do you calculate flow? | (change in pressure)/resistance |
Terbutaline and Clonidine would have what effect on insulin secretion? | Terbutaline, a beta-2 agonist would stimulate secretion of insulin; Clonidine, an alpha-2 agonist would inhibit insulin secretion |
What monobactam would you administer to patient with UTI showing gram negative rods and a penicillin allergy? | Aztreonam, different ring structure than penicillin so no cross reactivity; has no effect on gram positive or obligate anaerobes |
What is the most overlooked symptom in type 1 diabetics? | Weight loss despite increased eating |
Patient presents with ring shaped lesions with scaly border and central clearing. What is the appropriate treatment? | Clotrimazole cream |
Restrictive cardiomyopathy consisting of endomyocardial fibrosis, myocyte necrosis, and prominent eosinophilc infiltrate. Diagnosis? | Loeffler endocarditis |
Patient's eye looks "down and out", what cranial nerve is involved? | CN III |
How can you tell if a gallstone is in the common bile duct or the cystic duct? | Jaundice, only occurs when stone is in the common bile duct. |
What is the major source of osteoblasts that form new bone after a fracture of long bones? | Periosteum |
Traveller's diarrhea is commonly caused by E. coli, Shigella, and C. jejuni. What are the most commonly used agents to treat traveller's diarrhea? | Fluoroquinolones (ciprofloxacin, ofloxacin, norfloxacin) and TMP/SMT in children |
A 20 yro man with a firm lump in his right testicle. Biopsy shows non-encapsulated, yellow, mucinous mass with endodermal sinuses. What tumor marker would be expected? | alpha fetoprotein; histologic appearance is of a yolk sac tumor |
This 5HT3 antagonist is used for "diarrhea predominant" IBS. | Alosetron |
What is the mechanism of ursodiol? | dissolve cholesterol gallstones |
What drug is lansoprazole similar to? | omeprazole |
This prokinetic agent acts as a dopamine (D2) receptor antagonist. | Domperidone |