MLS ASCP exam recall questions & Answers 2024
GRADED A+
Procainamide - CORRECT ANSWER-NAPA
loose clusters of small spherical microconidia, positive urease - CORRECT ANSWER-Trichophyton
mentagrophytes
BHCG tumor marker - CORRECT ANSWER-chorocarcinoma
5HIAA - CORRECT ANSWER-carcinoid tumors
Proteus vulgaris vs P. mirabilis indole test - CORRECT ANSWER-P. vulgaris is indole pos. P. mirabilis is
indole neg
Hydatid cyst fluid - CORRECT ANSWER-used to neutralize Anti-P1 antibody
Antacid overdose - CORRECT ANSWER-Check pH
Prolonged PT, PTT, and thrombin after collecting from catheter - CORRECT ANSWER-heparin
contamination
mixing study that was performed with a prolonged PTT that couldn't be corrected - CORRECT 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 -
CORRECT ANSWER-check the CaCl/phospholipid reagent delivery
Patient is on coumadin therapy, what will be affected - CORRECT ANSWER-Decreased protein C
Lots of stomatocytes - CORRECT ANSWER-Liver disease
, Burr cells - CORRECT 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 - CORRECT
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 - CORRECT
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 - CORRECT ANSWER-check for lipemia (elevates HGB)
PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's - CORRECT ANSWER-
Prussian blue for howell jolly bodies made of iron. Prussian blue stain, which is not taken up by
reticulocytes, is helpful in differentiating the two.
what RBC inclusion is composed of DNA? - CORRECT ANSWER-howell jolly bodies
what falsely increases ESR - CORRECT ANSWER-vibration, tilting of tube, higher temps, >1 hr test time,
improper mixing of blood, improper dilution
factors decreasing ESR - CORRECT ANSWER-Polycythemia, Microcytosis (Hb C), Sickle cells, spherocytes,
Anti-inflammatory medications, Hypogammaglobulinemia, Hypofibrinogenemia (DIC), High WBC count,
Hyperviscosity
Factors increasing ESR - CORRECT ANSWER-Anemia, Macrocytosis, Female gender, Age >50 years,
Obesity, Pregnancy, Hypercholesterolemia, cancer, multiple myeloma, rouleaux, infections, inflammation
what falsely decreases ESR - CORRECT ANSWER-low blood/ room temps, air bubbles, tests <1 hr,
improper mixing of blood, improper dilution
GRADED A+
Procainamide - CORRECT ANSWER-NAPA
loose clusters of small spherical microconidia, positive urease - CORRECT ANSWER-Trichophyton
mentagrophytes
BHCG tumor marker - CORRECT ANSWER-chorocarcinoma
5HIAA - CORRECT ANSWER-carcinoid tumors
Proteus vulgaris vs P. mirabilis indole test - CORRECT ANSWER-P. vulgaris is indole pos. P. mirabilis is
indole neg
Hydatid cyst fluid - CORRECT ANSWER-used to neutralize Anti-P1 antibody
Antacid overdose - CORRECT ANSWER-Check pH
Prolonged PT, PTT, and thrombin after collecting from catheter - CORRECT ANSWER-heparin
contamination
mixing study that was performed with a prolonged PTT that couldn't be corrected - CORRECT 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 -
CORRECT ANSWER-check the CaCl/phospholipid reagent delivery
Patient is on coumadin therapy, what will be affected - CORRECT ANSWER-Decreased protein C
Lots of stomatocytes - CORRECT ANSWER-Liver disease
, Burr cells - CORRECT 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 - CORRECT
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 - CORRECT
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 - CORRECT ANSWER-check for lipemia (elevates HGB)
PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's - CORRECT ANSWER-
Prussian blue for howell jolly bodies made of iron. Prussian blue stain, which is not taken up by
reticulocytes, is helpful in differentiating the two.
what RBC inclusion is composed of DNA? - CORRECT ANSWER-howell jolly bodies
what falsely increases ESR - CORRECT ANSWER-vibration, tilting of tube, higher temps, >1 hr test time,
improper mixing of blood, improper dilution
factors decreasing ESR - CORRECT ANSWER-Polycythemia, Microcytosis (Hb C), Sickle cells, spherocytes,
Anti-inflammatory medications, Hypogammaglobulinemia, Hypofibrinogenemia (DIC), High WBC count,
Hyperviscosity
Factors increasing ESR - CORRECT ANSWER-Anemia, Macrocytosis, Female gender, Age >50 years,
Obesity, Pregnancy, Hypercholesterolemia, cancer, multiple myeloma, rouleaux, infections, inflammation
what falsely decreases ESR - CORRECT ANSWER-low blood/ room temps, air bubbles, tests <1 hr,
improper mixing of blood, improper dilution
