DM Ch 8

What equipment would be best to use when performing venipuncture on an elderly patient currently undergoing chemotherapy.

• A winged collection set and syringe with a 23 gauge needle

• A winged collection set and evacuated tubes with a 21 gauge straight needle

• A straight 23 gauge multi-sample needle and evacuated tubes

• A straight 21-gauge multi-sample needle and evacuated tubes

Collection tubes for capillary puncture usually have a volume of

• 1.0-3.0 ml

• 0.125-0.6 ml

• 1.8-2.2 ml

• 0.25-1.0 ml

The substances studied in blood tests are called

• analytes

• materials

• factors

• activators

Which of the following may be present in a collection tube but in most cases does not change the qualities of the blood itself.

• calcium binding anticoagulants

• thrombin inhibiting anticoagulants

• clot accelerators

• separator gel

Glycolysis is prevented by the additive

• sodium floride

• potassium oxalate

• sodium oxalate

• EDTA

A red topped tube is often used for _____tests.

• coagulation

• hematology

• serology

• glucose

A patient has orders for a blood culture and coagulation studies. Which of these indicates the proper order for drawing these specimens?

• Yellow topped SPS tube/blood culture bottle, light blue top tube

• Light blue top tube, yellow topped SPS tube, blood culture bottles

• Yellow topped ACD tube/ blood culture bottles, light green topped tube

• Yellow topped SPS tube/blood culture bottles, lavender topped tubes

Blood is tested for the presence of bacteria by performing a

• blood culture

• complete blood count

• complete blood count with differential

• coagulation study

Preanalytical errors take place

• before the patient enters the laboratory for a blood draw

• before testing is performed on a specimen

• during the testing process

• In the process of creating a treatment plan based on test results

A phlebotomy technician can cause preanalytical errors by

• filling collection tubes in the wrong order

• mixing specimens with tube additives immediately after blood draw

• labeling a specimen tube after collection

• delivering a specimen for testing immediately after drawing it