ASCP RECALLS EXAM LATEST 2023 ACTUAL EXAM 200+
QUESTIONS AND CORRECT ANSWERS(VERIFIED
ANSWERS)|AGRADE
Patient has walking pneumoniae and is prescribed penicillin. 2 weeks later, still
sick. What happened? – ANSWER- Bacteria has no cell wall
Potassium permanganate in auramine-rhodamine stain for Mycobacterium –
ANSWER- Quenching agent
Specimen of choice for rotavirus? – ANSWER- stool
Took a swab sample from a wound and incubated on three different medias
(including anaerobic media). Nothing grew. What happened? – ANSWER- Swab
material inhibited the sample.
Latex agglutination for Staphylococcus Aureus detects what? – ANSWER- Protein
A and clumping factor
Different between Staphylococcus aureus and other Staph. Spp? – ANSWERStaphylococcus Aureus is Coagulase Positive
How to differentiate between Staphylococcus aureus and Micrococcus –
ANSWER- Micrococcus arranged in tetrads
Colonies are yellow and none hemolytic on SBA
most importantly Micrococcus is Furazolidone resistant
Burr cells blood picture – ANSWER- uremia
(uremia and liver disease, artifact (alkaline glass effect)
Stomatocytes blood picture – ANSWER- Liver disease
Badly discolored blood picture with very spiky cells. What caused this? –
ANSWER- Slide not dry
Looks like dark Burr cells
Iatrogenic anemia is due to what? – ANSWER- excessive blood draws
(Iatrogenic anemia = means lowered hematocrit and hemoglobin count)
What cell type is increased in Infectious mononucleosis? – ANSWER- lymphs
B cells infected
T cells reactive (pictured)
Lupus anticoagulant causes what? – ANSWER- Increased risk of thrombosis
Sample taken from indwelling catheter. Patient isn’t on any anticoagulants yet PTT
and TT are way elevated. – ANSWER- Heparin contamination from the catheter
Anti-Thrombin III – ANSWER- It is a Heparin Co-factor
deficiency is associated with thrombosis
In which case is Magesium monitored? – ANSWER- Pre-eclampsia (eclampsia)
(Twitching, cramping, arrhythmias)
Patient taking primidone showing toxicity, but blood levels normal. What do you
do next? – ANSWER- Test phenobarbital level
(primidone is the inactive form of phenobarbitol)
Sperm count can be done on semen sample when – ANSWER- Liquefaction is
complete (30-60 minutes)
Liquefaction time is a measure of the time it takes for the semen to liquefy.
anti-sperm antibodies – ANSWER- causes agglutination in the form of attached
sperms. Head to head, tail to tail or head to tail.
Tumor marker seen in pancreatic cancer – ANSWER- CA 19-9
(and Carcinoembryonic antigen (CEA))
Fasting glucose 120. What’s the diagnosis? – ANSWER- Impaired fasting glucose.
0-50 mg/dl = hypoglycemia
50-100 mg/dl = normal
100-125 mg/dl = impaired
126 mg/dl = diabetes
What increase in Pheochromocytoma ? – ANSWER- Metanephrines in urine (24
hours collection)
sensitivity is – ANSWER- TP/TP +FN X 100
Sensitivity: probability that a test result will be positive when the disease is present
(true positive rate)
specificity is – ANSWER- TN/TN+TP X 100
Specificity: probability that a test result will be negative when the disease is not
present (true negative rate)
Type 1 hypersensitivity reaction – ANSWER- anaphylactic shock . Examples: bee
sting, hay fever, asthma, food allergies.
IgE mediated
Type 2 hypersensitivity reaction – ANSWER- Agglutination, eg transfusion
reaction, HDFN. Hashimotos
Type 3 hypersensitivity reaction – ANSWER- Immune complex like serum
sickness, Systemic Lupus Erythematosus, Rheumatoid Arthritis
(A) type I anaphylactic: IgE “fixed on mast cells release histamine i.e. asthma, hay
fever, bee sting.
(C) type II antibody dependent cytotoxicity: antigen “fixed” on cell attacked by
IgG and IgM i.e. transfusion rxn, AIHA, Hashimoto, graves, goodpasture disease.
(I) type III immune complex: free antigen/free antibody form complex not cleared
by mononuclear phagocytic system i.e. RA, SLE, serum sickness.
(D) type IV delayed: sensitized T cells release IL; mono’s and lymphs infiltration
i.e. contact dermatitis, GVHD, diabetes.
Type 4 hypersensitivity reaction – ANSWER- T-cell dependent like contact
dermatitis, TB, Leprosy, GVHD
Increased Alkaline Phosphatase in – ANSWER- Obstruction Jaundice (post
hepatic)
(and bone disease)
Chronic hepatitis – ANSWER- anti-smooth muscle antibody (not sure)
Waxy cast found in urine indicates ? – ANSWER- End stage of degeneration (renal
failure)
HgbA1c decrease in – ANSWER- Chronic Hemolysis (hemolytic anemia)
Lipoprotein that transport the majority of cholesterol into cells – ANSWER- LDL
Micrococcus – ANSWER- Resistance to Furazolidone
(Bacitracin S, Staph R. LabCE question as well.)
Procainamide metabolite that need to be measured along with Procainamideis –
ANSWER- NAPA
Main metabolite of cocaine – ANSWER- Benzoylecgonine
Type 1 hypersensitivity stimulated by – ANSWER- IgE
Blood product that has highest capability of transmitting hepatitis – ANSWERNeedle stick during a procedure
Heinz bodies – ANSWER- Heinz bodies: denatured HB, need supervital stain, seen
in G6PD, thalassemia and unstable hemoglobins
Child swallowed naphthalene ball, what is expected to be seen on peripheral blood
smear ? – ANSWER- Heinz Bodies
Stomatocytes – ANSWER- liver disease