CSMLS practice questions
A bronchial washing specimen for routine bacterial, fungal and acid-fast culture was
received. The sample volume is insufficient to perform all the requested tests. Which of the
following actions should be performed?
a. decrease the sample volume per culture plate to ensure the full culture request is fulfilled
b. cancel all the cultures requested
c. establish the priorities for culture based on patient diagnosis
d. call the clinician to establish the priorities for culture - correct answer-d. call the clinician to
establish the priorities for culture
A cyto-centrifugation preparation from a peritoneal fluid demonstrates many large
multinucleated cells with "fried egg" appearance and basophilic cytoplasm. What is the
identification of these cells? - correct answer-Mesothelial
A dark brown pigment is noted on formalin fixed, hematoxylin and eosin stained section.
What action can prevent this from occurring?
a. maintain formalin at a neutral pH
b. treat sections with alcoholic picric acid
c. "bread loaf" large sections
d. increase fixation time - correct answer-a. maintain formalin at a neutral pH
A technologist is overwhelmed for repeatedly having to leave their laboratory work to assist
the phlebotomist. Which of the following actions is appropriate? - correct answer-Request a
review of work load
After addition of ammonium hydroxide and ammonium oxalate during a decalcification
chemical endpoint test there is no visible precipitate. What does this indicate? - correct
answer-Decalcification is complete
Express consent - correct answer--indicates that documents have been signed by the patient
or relative-often done when the patient is being admitted to hospital or prior to the procedure
itself
Gram positive cocci and Gram negative bacilli were seen on a Gram stained smear. Which
of the following media would be most helpful in isolating the Gram positive organism? A.
MacConkey agar. B. Buffered charcoal (yeast extract agar). C. blood agar. D. phenylethyl
alcohol agar - correct answer-NOT: MacConkey agar
How should a technologist proceed when collecting a blood sample from a patient who is
terminating a pregnancy?
a. collect the patients blood
b. discuss the surgical procedure with the patient
c. refuse to collect from this patient as it violates strongly held beliefs
d. collect the blood sample but avoid eye contact with the patient - correct answer-a. collect
the patients blood
, Reasons for microchatter seen on a hematoxylin and eosin section? - correct answer--
Over-dehydration
- Dull blade
- Too much time spent in hot wax
The microtome is NOT working properly even after lubricating the parts. Where is the best
place to find information regarding the microtome? - correct answer-Manufacturer's manual
What action should be taken first when a liter of pleural fluid is spilled on the bench top? A.
evacuate area. B. cover with paper towels. C. pour disinfectant around the spill. D. don an
N95 mask - correct answer-NOT: cover spill with paper towels
What effect will CD55 and CD59 deficiency have on the red cell membrane? A. decrease
sensitivity to cell lysis by complement. Increased sensitivity to cell lysis by complement. C.
decrease sensitivity to cell lysis after ingestion of fava beans. D. increase sensitivity to cell
lysis after ingestion of fava beans - correct answer-NOT: decreased sensitivity to cell lysis by
complement
What is the benefit in taking three deep and mindful breaths when dealing with a stressful
situation? - correct answer-Deep breathing has a positive effect on the nervous system
What is the first step to take when a mass casualty situation is reported on a holiday at the
technologist's workplace? A. call paramedics for assessment of situation. B. wait for
casualites to arrive in the ER to assess. C. activate the laboratory emergency plan. D. call
canadian blood services to request blood - correct answer-C. activate the laboratory
emergency plan
What is the most important step in preventing infection?
a. wearing gloves
b. hand washing
c. wearing N95 mask
d. disinfecting surfaces - correct answer-b. hand washing
What is the proper order for removal of personal protective equipment?
a. gloves, mask, eye protection, gown
b. gown, gloves, eye protection, mask
c. gown, mask, gloves, eye protection
d. gloves, gown, eye protection, mask - correct answer-d. gloves, gown, eye protection,
mask
What is the sequence of reagents when performing a Gram stain? - correct answer-Crystal
violet, iodine, decolourizer, safranin
what is the systematic approach to reviewing a task or job to identify hazards?
a. hazard control
b. risk assessment
c. internal audit
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