SOLVED QUESTIONS WITH ACCURATE
VERIFIED ANSWERS
◉ loose clusters of small spherical microconidia, positive urease.
Answer: -Answer: Trichophyton mentagrophytes -Trichophyton is the
only Dermatophyte with two colony types : macroconidia and
microconidia. - T. mentagrophytes characteristically produce "grapelike
clusters" of microconidia. - Positive in the hair perforation test.
◉ Beta -HCG tumor marker. Answer: Answer: chorocarcinoma
-The are are 2 forms of hCG Alpha (common form) and Beta (unique
form)
◉ 5HIAA 5-hydroxyindoleacetic acid. Answer: -Answer: carcinoid
tumors -5HIAA: primary metabolite of serotonin, a chemical substance
(neurotransmitter) that transmits messages between nerve cells. -Large
quantities of serotonin and 5-HIAA may be produced by some carcinoid
tumors.- Carcinoid tumors are slow-growing noncancerous or cancerous
neuroendocrine masses that can form in the GI tract, especially in the
appendix, and in the lungs.
◉ Proteus vulgaris vs P. mirabilis indole test. Answer: P. vulgaris is
indole pos. P. mirabilis is indole neg
,◉ Hydatid cyst fluid. Answer: used to neutralize Anti-P1 antibody
◉ Antacid overdose. Answer: Check pH
◉ Prolonged PT, PTT, and thrombin after collecting from catheter.
Answer: heparin contamination
◉ mixing study that was performed with a prolonged PTT that couldn't
be corrected. Answer: DRVVT (Dilute Russell Viper Venom Test)
◉ two pt's ran in duplicate (PT and PTT). The PTT seemed to always be
prolonged but PT looked ok. Answer: check the CaCl/phospholipid
reagent delivery
◉ Patient is on coumadin therapy, what will be affected. Answer:
Decreased protein C
◉ Lot's of stomatocytes. Answer: Liver disease
◉ Burr cells. Answer: Uremia
◉ Picture of target cells with hemoglobin C crystals. The white count
was high on instrument 1, so a second instrument was used with a
stronger lysing agent, and the white count was corrected. Answer: anti-
, lysing target cells are what increased the white count? Erythrocytes
containing hemoglobin C do not lyse normally (sickle cell diseases)
◉ A sodium citrate tube was drawn for a HCT on a pt but the hematocrit
was abnormal. Answer: recollect with decreased anticoagulant. high hct
(>55%) causes low plasma so you need less anticoagulant
◉ Question that gives a red blood cells count, HGB, and HCT. I did the
rule of 3 and found that the HGB didn't meet the rule of 3 because it was
too high. Answer: check for lipemia (elevates HGB)
◉ PBS with an elevated reticulocyte count and howell jolly bodies in the
RBC's. Answer: -Answer: howell jolly bodies= DNA= Wright Stain
-Peppenheimer- Prussian blue stain
-which is not taken up by reticulocytes
-helpful in differentiating the two.
-Reticulocytes=Supravital/ new methylene blue stain
◉ what is composed of DNA?. Answer: howell jolly bodies
-wright Stain
◉ what falsely increases ESR. Answer: vibration, tilting of tube, higher
temps, >1 hr test time, improper mixing of blood, improper dilution