Specimen preparation

Question 1

Software Management in the lab which maintains patient information and specimen testing data

Answer 1

Laboratory Information System( LIS)

Question 2

Unlabeled specimens (Accept/Reject)

Answer 2

Reject except for invasive collections like CSF or other bodily fluids can be processed with signed waiver from the collector that assumes responsibility

Question 3

Mislabeled specimen (spelling)

Answer 3

Resolved by a phone call to ordering location to verify except for Transfusion medicine (Sample is rejected)

Question 4

If sample is mislabeled with another patient information and demographics do not match requisition (Reject/Accept)

Answer 4

Rejected

Question 5

Incorrect preservative

Answer 5

Reject

Question 6

Contaminated specimen

Answer 6

Reject

Question 7

Incorrect blood tube

Answer 7

Consult lab protocol

Question 8

Inappropriate volume of Na Cit tubes

Answer 8

Reject

Question 9

Hemolyzed blood

Answer 9

Discretion of the medical lab tech just attach comment results but not rejected

Question 10

Lipemic specimen

Answer 10

Technologist will ultracentrifuge to spin out fat particles

Question 11

Icteric blood high levels of bilirubin (yellow/green to bright yellow)

Answer 11

Add comments and result

Question 12

Necessary to separate plasma or serum from the cells of blood for testing

Answer 12

Centrifugation

Question 13

Speed setting (RPM/RCF)

Answer 13

RPM revolutions per minute RCF is relative centrifugal force

Question 14

SST clotting time before centrifuge?

Answer 14

Gold- 30 mins

Red- 30-60 mins

Question 15

If clotting is incomplete it will result in?

Answer 15

Strands of fibrin in serum sample

Question 16

Centrifuge Serum and plasma tubes for how long and RCF?

Answer 16

10 minutes at 1000-1300 RCF

Question 17

Deliver unspun Na CIt tubes to coagulation bench and centrifuge for how long and RCF?

Answer 17

15 minutes at 1500

Question 18

Whole blood (EDTA) lav should it be centrifuged or not?

Answer 18

NO hand delivered to hematology bench

Question 19

How many times potassium in RBC than in serum?

Answer 19

25 times more potassium . Separation should occur within 2 hrs, delay will result in high K level and low sugar

Question 20

Clots or fibrin strands on PST post-centrifugation indicates

Answer 20

Specimen was not mixed properly after collection

Question 21

SST post-centrifugation leads to Free RBC and or fibrin strands is due to?

Answer 21

Centrifuging specimen before adequate clotting. Transfer serum to aliquot tube and re-spin

Question 22

Common technique to share serum or plasma among different benches or test

Answer 22

Aliquoting specimens

Question 23

Aliquoting specimen technique involves labeling tube Before or After aliquoting?

Answer 23

before aliquoting

Question 24

Obtain label of aliquoting from the requisition or primary tube?

Answer 24

From the primary tube always

Question 25

The aliquot tubes are placed in the front row or at the back of primary specimen tubes?

Answer 25

Aliquots are behind /back row

Question 26

C&S samples for urine needs which type of container?

Answer 26

Sterile container with lids for microbiology

Question 27

This urine specimen is collected any time without prior patient preparation

Answer 27

Random Specimen

Question 28

Used for routine microbiological culture and sensitivity test for urine collection

Answer 28

Midstream Clean catch specimen MSU

Question 29

Most concentrated specimen voided suitable for testing cytology

Answer 29

First morning specimen

Question 30

A timed urine collection using a lab provided collection container and should be kept in the fridge

Answer 30

24-Hour or timed specimen

Question 31

If preservatives will be added to the collection container by lab personnel, this needs to be done PRIOR or AFTER collection

Answer 31

Prior to start of collection

Question 32

What are the 4 Lab professional role in a 24-hour urine collection ?

Answer 32

Prepare container for collection Explain collection procedure Receive and accession the specimen Process the specimen for testing

Question 33

Pediatric urine specimen (Sterile/not sterile) collection

Answer 33

Not Sterile from the bag transferred to a collection cup and sent to lab