ASCP RECALLS 2022/2023 | 500 QUESTIONS WITH ANSWERS (ALL CORRECT)
ASCP RECALLS 2022/2023 | 500 QUESTIONS WITH ANSWERS (ALL
CORRECT)
3 pairs of hooklets in an ovum Correct Answer – Hymenolepis Diminuta
Which is the agent of hand, foot and mouth disease of humans? Correct Answer – Coxsackie
A.
Detection of antigen in urine specimen can be used for which of the following type of pneumonia
infection
a. Fusobacterium
B. Y. Pestis
C. Legionella
D. Mycobacterium TB. Correct Answer – Legionella
Antler hyphae found in … Correct Answer – Microsporum Audouinii
What grows on chocolate agar Correct Answer – Haemophilus spp.
*requires X and V factor
It could grow around colonies of with Staph. Aureus forming Satellitism as Staph. Aureus (in
addition Neisseria and Pneumococcus) releases Hemin and NAD AKA factor 10 and Factor 5
Double zone of hemolysis and beta lactamase Correct Answer – Clostridium Perfringens
Which increases first after an MI Correct Answer – Myoglobin
Which of the following parasite cause autoinfection in immunocompromised patients? Correct
Answer – Strongyloides Stercoralis
Which of the following causes antibody against TSH? Correct Answer – Graves Disease =
TSHR antibody
increase T3 and T4
decrease TSH
Which of the following causes antibody against Thyroglubulin and Thyroid cells? Correct
Answer – Hashimotos = Anti-thyroglobulin
decrease T3 and T4
increase TSH
What RBC inclusion can be seen on blood smear of a child who accidentally ingested moth
balls? Correct Answer – Heinz Bodies
Which of the following causes decrease HbA1c? Correct Answer – Sickel cell or any chronic
Hemolytic Anemia
Which of the following cells releases histamine/heparin? Correct Answer – Eosinophil and
Basophil
Which of the following Mycobacteria we can acquire from tap water? Correct Answer –
Mycobacterium Gordonae
Which of the following analytes is cofactor for most of 300 enzymes? Correct Answer –
Magnesium (Zinc too)
reference range: 1.7-2.4 mg/dl
Which of the following condition is the most common cause of increase anion gap? Correct
Answer – Uremia (Renal failure), Lactic acidosis, Ketoacidosis, Hypernatremia, ingestion of
Methanol, Ethylene Glycol or Salycilate (SLUMPED)
Double zone of hemolysis bacteria… how to confirmation? Correct Answer – positive reverse
CAMP test.
Gram negative anaerobes after a Jaw surgery Correct Answer – Veillonella
reduce nitrate to nitrite, does not ferment carbohydrates.
Gram negative, beta hemolytic, oxidase positive organism isolated from wound. A/A on TSI
Correct Answer – Aeromonas
ONPG negative Correct Answer – N meningitis, not sure?
What requires oil or olive oil Correct Answer – Malassezia furfur (Tinea Versicolor)
Spaghetti and meatballs appearance
Patient receiving blood from mother requires what type of blood Correct Answer – Irradiated
blood
relatives might probably have similar HLA which will recognized by the baby’s immune system
as same, hence won’t be attacked.
May cause Graft vs Host disease. Hence, Leukocyte need to be irradiated
HTLV- confirmatory test Correct Answer – Western blot
Positive RPR negative FTA for Syphilis Correct Answer – False positive
Given a mini panel of antibody reactions. The serum is tested against Group 0 RBCs and cord
cells. Reacts with all adult cells, no reaction with cord cells. What antibody? Correct Answer –
anti-I because it did not react with cord cells
Antigens Le a and Le b Correct Answer – Is absorbed from the serum onto red cells
A cold agglutinin picture. The first question asked what disease/infection it was associated with
it and second asked what would cause this blood picture Correct Answer – Mycoplasma
pneumoniae and
Cold reacting antibodies
Given mother blood type (AB-) and baby type (O+), what do you do next? Correct Answer –
Since O blood type is impossible from AB mom, get a new heelstick from baby.
Biggest problem with PCR? Correct Answer – Contamination with nucleotides.
Quantitative (real time) PCR is useful in detecting … Correct Answer – EBV
What HBV disease marker is found in individuals with a past infection? life time marker?
Correct Answer – Anti-HBc
Positive anti-HBe, anti-HBc IgG, and Anti-HBs indicates what stage of hepatitis? Correct
Answer – Immunity to Hep B due to previous infection
Following a throat infection, patient is having kidney problems. What bacteria causing it?
Correct Answer – Streptococcus pyogenes
Patient has walking pneumoniae and is prescribed penicillin. 2 weeks later, still sick. What
happened? Correct Answer – Bacteria has no cell wall
Potassium permanganate in auramine-rhodamine stain for Mycobacterium Correct Answer –
Quenching agent
Specimen of choice for rotavirus? Correct Answer – stool
Took a swab sample from a wound and incubated on three different medias (including anaerobic
media). Nothing grew. What happened? Correct Answer – Swab material inhibited the
sample.
Latex agglutination for Staphylococcus Aureus detects what? Correct Answer – Protein A and
clumping factor
Different between Staphylococcus aureus and other Staph. Spp? Correct Answer –
Staphylococcus Aureus is Coagulase Positive
How to differentiate between Staphylococcus aureus and Micrococcus Correct Answer –
Micrococcus arranged in tetrads
Colonies are yellow and none hemolytic on SBA
most importantly Micrococcus is Furazolidone resistant
Burr cells blood picture Correct Answer – uremia
Stomatocytes blood picture Correct Answer – Liver disease
Badly discolored blood picture with very spiky cells. What caused this? Correct Answer –
Slide not dry
Looks like dark Burr cells
Iatrogenic anemia is due to what? Correct Answer – to excessive blood draws.
What cell type is increased in Infectious mononucleosis? Correct Answer – lymphs
B cells infected
T cells reactive (pictured)
Lupus anticoagulant causes what? Correct Answer – Increased risk of thrombosis
Sample taken from indwelling catheter. Patient isn’t on any anticoagulants yet PTT and TT are
way elevated. Correct Answer – Heparin contamination from the catheter
Anti-Thrombin III Correct Answer – It is a Heparin Co-factor
deficiency is associated with thrombosis
In which case is Magesium monitored? Correct Answer – Pre-eclampsia (eclampsia)
Patient taking primidone showing toxicity, but blood levels normal. What do you do next? –
Correct Answer – Test phenobarbital level.
Sperm count can be done on semen sample when Correct Answer – Liquefaction is complete
(30-60 minutes)
anti-sperm antibodies Correct 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 Correct Answer – CA 19-9
Fasting glucose 120. What’s the diagnosis? Correct Answer – Impaired fasting glucose.
0-50 mg/dl = hypoglycemia
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