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, 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 PT 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 since it is absorbance based)
PBS with an elevated reticulocyte count and siderotic granules in the RBC's
Prussian blue for siderotic bodies made of iron. Prussian blue stain, which is not taken up by
reticulocytes, is helpful in differentiating the two.
what is composed of DNA?
howell jolly bodies
what falsely increases ESR
vibration, tilting of tube, higher temps, >1 hr test time, improper mixing of blood, improper dilution
factors decreasing ESR
Polycythemia, Microcytosis (Hb C), Sickle cells, spherocytes, Anti-inflammatory medications,
Hypogammaglobulinemia, Hypofibrinogenemia (DIC), High WBC count, Hyperviscosity
Factors increasing ESR
Anemia, Macrocytosis, Female gender, Age >50 years, Obesity, Pregnancy, Hypercholesterolemia,
cancer, multiple myeloma, rouleaux, infections, inflammation
what falsely decreases ESR
Procainamide
NAPA = anti arrhythmia drug
loose clusters of small spherical microconidia, positive urease
Trichophyton mentagrophytes (grapes)
Beta HCG tumor marker
chorocarcinoma (uterine cancer)
