ASCP RECALLS EXAM LATEST ACTUAL EXAM 200

ASCP RECALLS EXAM LATEST 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? - ANSWER- Staphylococcus 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 1 / 4

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)) 2 / 4

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. 3 / 4

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 - ANSWER- Needle 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

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