10/7/12 b Flashcards
Single, roughly spherical structures that stain w/ silver stain found in bronchoalveolar lavage w/ biopsy describes _______.
Pneumocystis jiroveci
What oncogene is associated w/ small cell lung cancer?
L-myc (not N-myc!)
Which vaginal infection causes a grey discharge and a fishy smell?
Gardnerella is grey.
Which ameoba will infect the brain’s of AIDS pts?
Acanthamoeba
What are the Sx of Kallman syndrome?
amennorrhea, lack of secondary sexual characteristics ,and anosmia
What is the defect in kallman’s syndrome?
inability of the ant. pituitary to secrete FSH and LH
Which antifungals are CYP-450 inhibitors? Which HIV drugs?
Azoles; protease inhibitors (e.g. indinavir, saquinavir)
Hi BP and proteinuria before 20 wks gestation is suggestive of _______.
hydatidiform mole
What jaundice-causing disease is especially asscoiated w/ ulcerative colitis?
primary sclerosing cholangitis
What characterizes prmary scleosing cholangitis on ERCP?
“beading” appearance of bile ducts - alternating strictures and dilation
What are the special lab characteristics that differentiate GBS from other forms of Strep?
CAMP (+) (incomplete hemolysin) and bacitracin resistant
Which fibers detect changes in muscle length and initiate tendon reflexes?
spindle afferents
What neurons form the efferent part of the tendon reflex arc?
alpha motor neurons
Which muscle fibers attach to spindle afferents and other proprioceptors?
intrafusal fibers
What muscle fibers form the bulk of the muscle and do most of the contracting?
extrafusal fibers
How does parvovirus B19 usually manifest in the adult?
transient arthralgia
What ToRCHeS infection causes cutaneous hemorrhages, periventricular calcification, and deafness?
CMV
Which ToRCHeS infection causes PDA, pulmonary stenosis, developmental problems, and blindness?
rubella
What 3 (kinds of) conditions are target cells most commonly seen in?
thalassemias, Hb C disease, and liver disease
What drugs often used to treat sequelae of metabolic syndrome will maks the signs of hypoglycemia?
beta-blockers
What is methyldopa?
a centrally-acting alpha-agonist used for refractory htn
Which apoprotein activates LPL, and is responsible for a rare form of primary hyperlipidemia, w/ esp. hi TGs?
C-II
Which complement component is the most important for remnoval of immune complexes?
C3b
