(P) Lab 2: Direct Fecal Smear, Specimen Collection, and Processing Flashcards
Rupert-based
TOF. Ovum refers to the eggs stage of the parasites.
T (ova or ovum)
What to consider in macroscopic examination? (2)
color, gross abnormalities and consistency
Two components associated with routine parasitology?
- Macroscopic
- Microscopic
In microscopic examination, what is looked out for?
- Ova
- Parasite
- Fecal artifacts
TOF. The typical stool collection protocol consists of four (4) specimens.
F (3)
How many is the total specimen collected in 10 days?
3
In cases of amebiasis, how many specimens in 14 days is acceptable?
A. 3
B. 6
C. 9
D. 12
B
Stool samples from patients undergoing therapy that includes except:
A. Barium
B. Antacids
C. Bismuth or mineral oil
D. laxatives
E. NOTA
E
TOF
In specimen collection of a patient with antimalarial medications, they are delayed for a month following therapy
F (2 weeks)
The acceptable amount of stool required for PARASITE study
2-5g
TOF. Urine with poop is allowed as it is part of the human body and considered to be typical.
F (not allowed as it may destroy some parasites due to its acidity)
TOF. In case of no wide-mouthed containers, the poop may be put in a tissue.
F (tissue mask parasites or make examination of the sample difficult)
TOF. Temporary storage of fecal samples in a refrigerator (3 to 5 C) is acceptable.
T
The recommended time frame for liquid stool
within 30 minutes of passage.
Semi-formed stool should be examined within?
1hr
This type of stool specimens can be held for 24 hours following collection.
Formed-stool
Whch information of a specimen container does not belong:
A. Travel history
B. Physician’s name
C. Medical Technologist’s name
D. Clinical findings
E. NOTA
C
How many stool samples should be collected when following the
typical O&P collection protocol?
3
ratio of fixative to stool specimens
3:1
Before processing, what is done to the specimen?
specimen must be fixed in the preservative for at least 30
minutes before processing begins.
Which of these procedures is involved in the microscopic examination of stool
specimens for parasites?
A. Performing a concentration technique
B. Determining specimen consistency
C. Examining sample for gross abnormalities
D. Analyzing sample for color
A
used to measure objects observed microscopically accurately.
Ocular
Micrometer
disk inserted into the eyepiece of the microscope
diagnostic stages of parasites detected microscopically are measured in units
known as?
microns
Direct Wet Preparation
Slide may by mixing a small portion (2g) of unfixed
stool with?
saline or iodine
Direct Wet Preparation
reagent of choice
.85 saline soln
Direct Wet Preparation
suggested size for the glass slide
3 x 2
22mm square cover slip is utilized