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PARASITOLOGY > [LAB] Collection and Preservation of Stool Specimen > Flashcards

[LAB] Collection and Preservation of Stool Specimen Flashcards

1
Q

MEANING OF O&P

A

OVA AND PARASITES

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2
Q

MOST COMMON PROCEDURE PERFORMED IN PARASITOLOGY

A

O&P EXAM

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3
Q

USED IN THE DIAGNOSIS OF INTESTINAL PARASITES

A

O&P EXAM

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4
Q

WHEN SHOULD A STOOL SAMPLE BE TAKEN IF THE PATIENT IS UNDER MEDICATION

A

BEFORE THE INTAKE OF DRUGS
A WEEK AFTER THE INTAKE OF DRUGS

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5
Q

INTERFERING MEDICATIONS

A

ANTI DIARRHEAL
ANTI MALARIAL
ANTACIDS

BISMUTH
BARIUM

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6
Q

MEDICATIONS THAT LEAVE CRYSTALLINE RESIDUES

A

BISMUTH
BARIUM

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7
Q

EFFECTS OF BISMUTH AND BARIUM ON STOOL SAMPLES

A

LEAVES CRYSTALLINE RESIDUES

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8
Q

SUBSTANCE THAT RETARDS THE MOTILITY OF PROTOZOAN TROPHOZOITES

A

OILY LAXATIVES

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9
Q

EXAMPLES OF OILY LAXATIVES

A

CASTOR OIL
MINERAL OIL

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10
Q

EFFECTS OF OILY LAXATIVES ON STOOL SAMPLES

A

RETARD MOTILITY
DISTORT MORPHOLOGY

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11
Q

EFFECT OF ANTIBIOTICS ON NORMAL GI FLORA

A

DECREASES THE NUMBER OF PROTOZOANS FOR SEVERAL WEEKS

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12
Q

FOR HOW LONG ARE NORMAL FLORA IN THE GI DECREASED WHEN ANTIBIOTICS ARE TAKEN

A

SEVERAL WEEKS

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13
Q

TRUE OR FALSE
PARASITES DO NOT NEED TO FEED ON INTESTINAL BACTERIA

A

FALSE

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14
Q

PREFERRED SAMPLE CONTAINER

A

WIDE-MOUTH
SCREW-CAPPED

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15
Q

WHAT DO SCREW-CAPPED CONTAINERS PREVENT

A

DESSICATION
DRYING
SPILLAGE

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16
Q

FECAL SAMPLE CONTAMINANTS

A

URINE
TOILET WATER
SOIL

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17
Q

URINE’S EFFECT ON STOOL SAMPLES

A

DESTROYS PROTOZOANS’ MOTILE STAGES

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18
Q

TOILET WATER OR SOIL’S EFFECT ON STOOL SAMPELS

A

MAY CONTAIN FREE-LIVING ORGANISMS
COMPLICATES DIAGNOSIS

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19
Q

VOLUME FOR ROUTINE STOOL SAMPLES

A

THUMB-SIZED
1/2 TSP OF WATER SPECIMEN
5-6 TBSP. OF WATERY SPECIMEN

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20
Q

NUMBER OF SPECIMENS FOR ROUTINE EXAMINATION

A

3 FECAL SAMPLES
2 — NORMAL
1 — AFTER CATHARSIS OR PURGING

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21
Q

TRUE OR FALSE
FECAL SAMPLES CAN BE COLLECTED FOR AS LONG AS THE PATIENT WOULD LIKE TO

A

FALSE
COLLECTION SHOULD BE MADE ON SEPARATE DAYS
AND WITHIN A 7-10 DAY PERIOD

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22
Q

TIME PERIOD FOR COLLECTING FECAL SAMPLES

A

WITHIN 7 TO 10 DAYS
EVERY OTHER DAY

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23
Q

SUBSTANCE USED TO STIMULATE FLUSHING ACTION WIHTIN THE GIT

A

CATHARTIC

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24
Q

PREFERRED CATHARTICS

A

MAGNESIUM SULFATE
SALINE
FLEET’S PHOSPHOSODA

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25
Q

CATHARTICS TO AVOID

A

OIL BASED CATHARTICS

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26
Q

EFFECT OF OIL BASED CATHARTICS ON STOOL SPECIMENS

A

RETARD MOTILITY OF TROPHOZOITES

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27
Q

SITUATIONS IN WHICH CATHARTICS ARE NOT NEEDED

A

WHEN THE PATIENT HAS DIARRHEA OR DYSENTERY

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28
Q

SHOULD A PATIENT STILL USE CATHARTICS EVEN IF THEY HAVE DIARRHEA OR DYSENTERY? WHY OR WHY NOT?

A

NO
CATHARTICS WILL CONTRADICT

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29
Q

NUMBER OF SPECIMENS NEEDED FROM A PATIENT WITH SUSPECTED INTESTINAL AMOEBIASIS

A

6 SPECIMENS
3 — NORMAL BOWEL MOVEMENT
3 — AFTER CATHARSIS OR PURGE

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30
Q

TIME PERIOD FOR COLLECTING SAMPLES FROM A PATIENT WITH SUSPECTED INTESTINAL AMOEBIASIS

A

WITHIN 14 DAYS
COLLECT SAMPLE ON SEPARATE DAYS

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31
Q

NUMBER OF SAMPLES NEEDED FOR POST-THERAPY EXAMINATIONS

A

3

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32
Q

WHEN SHOULD A STOOL SPECIMEN BE CHECKED: PROTOZOAN INFECTION

A

3-4 WEEKS AFTER THERAPY

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33
Q

WHEN SHOULD A STOOL SPECIMEN BE CHECKED:
TAENIA INFECTION

A

5-6 WEEKS AFTER THERAPY

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34
Q

PERIOD FOR EXAMINATION OF LIQUID STOOL

A

WITHIN 30 MINUTES OF PASSAGE

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35
Q

PERIOD FOR EXAMINATION OF SOFT OR SEMIFORMED STOOL

A

WITHIN 1 HOUR OF PASSAGE

36
Q

PERIOD FOR EXAMINATION OF FORMED STOOL

A

WITHIN 24 HOURS OF PASSAGE

37
Q

ARE TROPHOZOITES ABLE TO ENCYST AFTER BEING PASSED FROM THE BODY

A

NO

38
Q

WHAT CHARACTERISTIC OF PROTOZOAN CYSTS ALLOW THEM TO RESIST DISINTEGRATION

A

CYST WALLS

39
Q

DOES FORMED STOOL REQUIRE IMMEDIATE EXAMINATION? WHY OR WHY NOT?

A

NO
CYSTS ARE ABLE TO RESIST DESINTEGRATION DUE TO THEIR CELL WALLS

40
Q

WHAT SHOULD BE ADDED TO SAMPLES IF EXAMINATION CANNOT BE DONE WITHIN THE PREFERRED TIME SLOT

A

PRESERVATIVES

41
Q

INFORMATION TO BE INCLUDED ON THE LABEL

A

PATIENT NAME, AGE, SEX, ID NUMBER
DATE AND TIME OF SPECIMEN COLLECTION
REQUESTING PHYSICIAN
PRESUMPTIVE DIAGNOSIS

42
Q

REASONS FOR A LAG TIME BETWEEN SPECIMEN PASSAGE AND EXAMINATION

A

TRANSIT TIME OR DISTANCE
WORKLOAD IN THE LABORATORY

43
Q

REASONS FOR PRESERVATION

A

MAINTAIN MORPHOLOGY
PREVENT CONTINUED DEVELOPMENT

44
Q

TEMPERATURE FOR REFRIGERATION

A

3-5C

45
Q

CHEMICAL PRESERVATIVE MIXTURE

A

1:3
1 PART STOOL
3 PARTS PRESERVATIVE

46
Q

REFRIGERATION PRESERVES WHAT PARASITES

A

PROTOZOAN CYSTS
HELMINTH EGGS
HELMINTH LARVAE

47
Q

WHAT PARASITES DOES REFRIGERATION KILL

A

TROPHOZOITES

48
Q

EFFECT OF PROLONGED REFRIGERATION

A

DESICCATION
KILLED TROPHOZOITES

49
Q

[PRESERVATIVE]
NOT EASY TO PREPARE

A

SAF

50
Q

[PRESERVATIVE]
ALL PURPOSE PRESERVATIVE

A

FORMALIN

51
Q

[PRESERVATIVE]
EASY TO PREPARE

A

FORMALIN
MIF
SCHAUDIN
PVA

52
Q

STAINS USED WITH FORMALIN

A

ACID FAST
SAFRANIN
CHROMOTROPE

53
Q

[PRESERVATIVE]
USED WITH OTHER STAINS

A

FORMALIN
MIF
SAF

54
Q

[PRESERVATIVE]
COMPATIBLE WITH IMMUNOASSAY DETECTION KITS

A

FORMALIN
SAF

55
Q

[PRESERVATIVE]
CANNOT PRESERVE

A

MIF

56
Q

[PRESERVATIVE]
CAN PRESERVE

A

FORMALIN
SAF
SCHAUDIN
PVA

57
Q

[PRESERVATIVE]
LONG SHELF LIFE

A

FORMALIN
MIF
PVA

58
Q

[PRESERVATIVE]
FIELD SURVEY

A

MIF
SAF

59
Q

[PRESERVATIVE]
CONTAINS MERCURY

A

SCHAUDIN
PVA

60
Q

[PRESERVATIVE]
FIXATIVE FOR INTESTINAL MUCOSAL SPECIMENS

A

SCHAUDIN

61
Q

[PRESERVATIVE]
PERMANENT STAIN

A

SCHAUDIN
PVA

62
Q

[PRESERVATIVE]
REMAIN STABLE FOR MONTHS

A

PVA

63
Q

[PRESERVATIVE]
PRESERVE MORPHOLOGY OF PROTOZOAN TROPHOZOITES AND CYSTS

A

PVA

64
Q

[PRESERVATIVE]
ALLOWS SPECIMEN SHIPPIN

A

PVA

65
Q

[PRESERVATIVE]
NO PERMANENT STAIN

A

FORMALIN
MIF

66
Q

[PRESERVATIVE]
UNABLE TO PRESERVE MORPHOLOGY OF PROTOZOAN TROPHOZOITES

A

FORMALIN
MIF

67
Q

[PRESERVATIVE]
IODINE INTERFERENCE

A

MIF

68
Q

[PRESERVATIVE]
DIFFICULT TO PREPARE

A

SCHAUDIN
PVA

69
Q

[MIF PRESERVATIVE]
CLEAR, ORANGE FLUID

A

UPPER

70
Q

[MIF PRESERVATIVE]
CONSISTS OF FORMALIN, MERTHIOLATE, WATER

A

UPPER

71
Q

[MIF PRESERVATIVE]
DOES NOT TRAP EGGS OR PROTOZOA

A

UPPER

72
Q

[MIF PRESERVATIVE]
THICK, PALE ORANGE OR CREAMY YELLOW

A

INTERFACE

73
Q

[MIF PRESERVATIVE]
MAY TRAP SOME PROTOZOA AND HELMINTH EGGS

A

INTERFACE

74
Q

[MIF PRESERVATIVE]
DEEPER STAINING

A

BOTTOM

75
Q

[MIF PRESERVATIVE]
EGGS AND PROTOZOA ARE FOUND

A

BOTTOM

76
Q

WHAT ARE THE FORMALIN CONCENTRATIONS USED AND WHAT DO THEY PRESERVE

A

5% — PROTOZOAN CYSTS
10% — HELMINTH EGGS AND LARVAE

77
Q

STORAGE CONTAINER OF MIF SOLUTIONS

A

BROWN BOTTLES

78
Q

OTHER NAME OF MIF SOLUTION II

A

LUGOL’S SOLUTION

79
Q

IODINE COMPOUNDS FOUND IN LUGOL’S SOLUTION

A

POTASSIUM IODIDE CRYSTALS
IODINE CRYSTALS

80
Q

COMPONENTS OF MIF SOLUTION I

A

FORMALDEHYDE
THIMEROSAL MERTHIOLATE
GLYCERIN
DISTILLED WATER

81
Q

COMPONENT IN SAF FOR ADHESION

A

MAYER’S ALBUMIN

82
Q

CONSTITUENTS OF MAYER’S ALBUMIN

A

EQUAL PARTS OF:
EGG WHITE
GLYCERIN

83
Q

CONSITTUENTS OF SCHAUDIN’S FIXATIVE (STOCK SOLUTION)

A

MERCURIC CHLORIDE
ETHYL ALCOHOL

84
Q

COMPONENTS OF SCHAUDIN’S FLUID

A

SCHAUDIN’S FIXATIVE
MERCURIC CHLORIDE
SATURATED AQUEOUS SOLUTION

85
Q

NOTABLE COMPONENT OF PVA

A

SCHAUDIN’S FLUID

86
Q

ALTERNATIVE TO SCHAUDIN’S FLUID

A

ZINC
COPPER

PARASITOLOGY (5 decks)

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