QUESTIONS AND ANSWERS SURE A+
Procainamide - ✔✔-Answer: NAPA
-p. 86-Ant antiarrhythmic drug that has a metabolite with the same drug action
-Procainamide is metabolized to N-Acetylprocainamide (NAPA)
- Must quantify both. Although they have the same drug affect, difference in half- life
may cause NAPA to accumulate in the blood and produce toxic affects even at
therapeutic levels of procainamide.
✔✔loose clusters of small spherical microconidia, positive urease - ✔✔-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: chorocarcinoma
-The are are 2 forms of hCG Alpha (common form) and Beta (unique form)
✔✔5HIAA 5-hydroxyindoleacetic acid - ✔✔-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 - ✔✔P. vulgaris is indole pos. P. mirabilis
is indole neg
✔✔Hydatid cyst fluid - ✔✔used to neutralize Anti-P1 antibody
✔✔Antacid overdose - ✔✔Check pH
✔✔Prolonged PT, PTT, and thrombin after collecting from catheter - ✔✔heparin
contamination
✔✔mixing study that was performed with a prolonged PTT that couldn't be corrected -
✔✔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 - ✔✔check the CaCl/phospholipid reagent delivery
✔✔Patient is on coumadin therapy, what will be affected - ✔✔Decreased protein C
✔✔Lot's of stomatocytes - ✔✔Liver disease
✔✔Burr cells - ✔✔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 - ✔✔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
- ✔✔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 - ✔✔check for
lipemia (elevates HGB)
✔✔PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's - ✔✔-
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