7 Flashcards
What is necessary for vitamin B12 absorption?
intrinsic factor
What cast type is associated with acute pyelonephritis?
white cell casts
Which cardiac marker is elevated 30 minutes to 4 hours after chain pain, peaks at 2-12 hours, and is usually back to normal range within 24-36 hours?
myoglobin
How quickly do agents of chromomycosis grow, in comparison to clinically insignificant commensals or contaminants?
they grow more slowly
Where are most acute phase proteins synthesized?
hepatocytes
What is the most common coagulation inhibitor?
lupus anticoagulant (anti-phospholipid antibody)
What are the expected serum and urine amylase levels in macro-amylasemia?
increased in serum, normal to decreased in urine
What condition is caused by deficient secretion of bilirubin into the bile canaliculi?
Dubin-Johnson syndrome
Which factors require vitamin K?
II, VII, IX
What is the main function of the hexose monophosphate shunt in a red blood cell?
provides reduced glutathione to prevent oxidation of hemoglobin
What is the minimum allowable time between an autologous donation and surgery?
72 hours
Which organism has a macro appearance of smooth, pastel rosy colonies, and a micro appearance of loose clusters of elliptical conidia in a diphtheroid pattern?
Acremonium sp.
Which organism has a macro appearance of cottony white mycelium and a yellow apron, and a micro appearance of mutli-celled, rough walled macroconidia with tapered terminal cells?
Microsporum canis
Which organism has a macro appearance of buff-brown colonies with distinct radial rugae, and a micro appearance of chains of large lemon-shaped anelloconidia?
Scopulariopsis sp.
Which organism has a macro appearance of peppered black-brown colonies with a grey-white reverse, and a micro appearance of dense aggregates of echinulate, brown-black conidia?
Aspergillus sp.
What substance will elevate specific gravity but not the osmolality?
protein
What is the quantitative method for the determination of albumin?
sulfosalicylic acid precipitation
Which WBC does not produce a positive leukocyte esterase result on a dipstick?
lymphocyte
What is the major property of antidiuretic hormone?
acts on the Na/K/(H’) pump
What is the main biological function of penicillin G, ampicillin, carbenicillin, and methicillin?
inhibit cell wall synthesis
Which tumor marker assay is useful in ruling out ovarian cancer?
CA 125
What complement component is found in both the classical and alternative pathways?
C3