Specimen Preparation, Handling, Transport & Storage Flashcards

1
Q

Preanalytical Variable in Px. Preparation

A

Age & Gender
Diurnal Variation
Posture
Fasting
Diet
Drugs
Stress

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2
Q

Exercise - Transient Increase

A

Lactate, FA, Ammonia

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3
Q

Fasting Specimens

A

FBS
GTT
Lipid Profile
Gastrin
Insulin
Aldoterone/Renin

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4
Q

Over fasting - 72 hrs

A

Increased in Males: TAG
Decreased in Females: 45mg/dl of Glucose

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5
Q

Increased during standing

A

Albumin
Cholesterol
Aldosterone
Calcium

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6
Q

Increased - From Supine to Sitting

A

Albumin
Enzymes
Calcium

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7
Q

Increased - From Sitting to Supine

A

Proteins
Lipids
BUN
Iron
Calcium

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8
Q

Increased - Prolonged tourniquet application

A

Potassium
Proteins
Enzymes
Lactate
Cholesterol
Ammonia

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9
Q

Increased - Fist Clenching

A

Potassium
Phosphate
Lactate

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10
Q

Analytes Increased in AM

A

ACTH
Iron
Cortisol

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11
Q

Analytes Increased in PM

A

GH
ACP

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12
Q

Calcium is ___& decrease supine

A

4%

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13
Q

Iron decreases up to ___% during the day.

A

30%

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14
Q

Decreased cortisol level by 8:00 pm

A

50%

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15
Q

Uric acid levels peak in men in their

A

20s

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16
Q

Increase of Cholesterol/TAG per year

A

TG - 2mg/dL (0.02 mmol/L)
TC - 2 md/dL (0.05 mg/dL)

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17
Q

Sleeping patients

A

Should be awakened

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18
Q

Outpatient/Ambulatory Patient is counterchecked with:

A

Driver’s License or Valid ID with photo

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19
Q

3 ways of ID

A

Positive ID: Verbal ID statement
Passive ID: Check ID band
Comparison of labeled specimen with px. ID before leaving

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20
Q

Average human blood

A

5 quartz (4.73 L)

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21
Q

Venous Blood

A

Deoxygenated, Dark Red Color

22
Q

Most Common Site for Venipuncture

A

Antecubital fossa - (1) Median (2) Cephalic (3) Basilic

23
Q

CLSI Recommended site for Venipuncture

A

Median Cubital Vein

24
Q

international Standard - A backflow is first seen in the ______________

A

Flash window of the Needle hub

Note: If no flash window in the choices, answer - needle hub

25
Most common Antiseptic
70% Alcohol
26
Used for Ethanol Testing
Benzalkonium chloride/Zephiran Chloride (1:750)
27
CLSI recommended - blood culture, Infants, Iodine Sensitivity
Chlorhexidine gluconate
28
Tourniquet Application
3-4 (7.5-10 cm) inches ABOVE the site for <1 minute
29
CLSI - Tourniquet Reapplication
2 minutes
30
Bacteria transmitted due to Reusable tourniquets
MRSA - Methicillin-resistant Staphylococcus aureus
31
10% contamination of 5% glucose increase glucose by _____ mg/dL
500 mg/dL
32
Needle Angle (Veni)
<30 degrees 15-30 degree
33
Needle - Yellow Cap gauge
20 gauge
34
Needle - Green Cap Gauge
21 gauge
35
Needle - Black Cap Gauge
22 gauge
36
Standard gauge for Venipuncture
21 gauge
37
Pediatric/Small veins needle gauge
23 gauge
38
Blood Letting Gauge
16-G
39
Lumbar puncture needle gauge
18-G
40
25-G
Infants/Neonates/Blood from Scalp needle Gauge
41
Routine Needle Length
1-1.5 inches
42
Butterfly Needle Length
1/2 - 3/4 (0.5-0.75) inch
43
Cause of Hemolysis
Prolong tourniquet application Alcohol contamination Small needle bore Agitation Frothing/Bubbling
44
Lancet Length Disposable: ________ Non-disposable: ______ Rodriguez - _____ NCBI - _____
Lancet Length Disposable: 0.75 mm Non-disposable: 1.75 mm (Rodriguez) 2.8 - 3.2 mm (NCBI)
45
Most Routine Site for Capillary Puncture
4th Finger
46
Sites to avoid in Capillary Puncture
Thumb 5th Finger
47
Depth of Puncture Children/Adults
<2.0/2-2.5 mm
48
Detected analytes in Arterialized Capillary Blood
pH pCO2
49
Preferred site for Arterialized Capillary Blood
Earlobe
50
First microcollection tube to be filled in Skin puncture
EDTA/Lavander
51
Order of Draw - Skin Puncture
(B)lood gases (S)lides (ED)TA (O)ther microcollection tubes (S)erum container