Chapter 43 Blood Specimen Collection

If an accidental arterial puncture occurs during the venipuncture procedure:

-Discontinue the venipuncture immediately -Remove the needle -Apply direct forceful pressure to the puncture site

When using the needle and syringe method of venipuncture, a ____-mL syringe is usually used for drawing several tubes

10 to 20

When obtaining venous blood with a vacuum tube, the tip of the needle should be inserted into the vein at a ______-degree angle

15 to 30

When performing a capillary puncture, the lancet should penetrate about ___ mm into the site

2

Tests drawn in the light-blue-stoppered tubes should be performed within:

2 hours

The tubes that contain SST gel tubes must stand for ___ minutes

30

Blood in specimen tubes that contain an anticoagulant must be inverted immediately _______ times. Gentle inversion prevents hemolysis

8 to 10

You should not obtain a venous blood sample from which of the following:

A patient that has had a mastectomy with lymph node dissection on that side

When several blood specimens are ordered, they should be drawn into the color-coded stoppered tubes in what order?

After the special tubes, light-blue, red/gray, gold, green, lavender, gray

Before performing a capillary puncture, you must wipe the desired site with a prep pad soaked with:

Alcohol

When it is very difficult to draw blood from a patient, it is recommended that you try using a(n) _______ as a tourniquet

Blood pressure cuff

Which of the following is a reason for performing capillary blood collection in the medical office?

Capillary blood is an ideal sample for many screening tests that require a very small amount of blood

Light-blue-stoppered tubes must be completely full because of the large amount of:

Citrate

Light-blue-stoppered tubes are most often the 5-mL size and are used for:

Coagulation testing

When drawing blood, in the case of a patient who has had a double mastectomy with lymph node dissection, you should:

Consult with the provider

If blood leaks out of the vein into the body during a venipuncture, it may cause:

Discoloration and swelling

Which of the following sites is commonly used to collect a capillary blood sample?

Great finger

When the needle is inserted into the vein, it punctures the wall of the vein and blood can then leak out into the surrounding tissues. This bleeding can cause discoloration and swelling. This is also known as which of the following?

Hematoma

When performing a venipuncture with a needle and syringe, forcing blood into the tube will cause:

Hemolysis

Blood collection tubes with a(n) _______ stopper contain ethylenediaminetetraacetic acid additive (EDTA) and are generally called CBC tubes

Lavender

After you wipe the desired site with an alcohol-prep pad:

Let it air dry

When performing a venipuncture, you should ask the patient to clench the fist:

Only if the vein does not stand out

It is generally appropriate to collect a capillary blood sample from a site that is:

Pale

Venipuncture is also known as:

Phlebotomy

If a patient sitting in a chair faints during the venipuncture procedure, you should first:

Remove the tourniquet

As a safety consideration, patients who say they feel faint:

Should put their head down between their knees

Which of the following may not be kept in the specimen logbook unless the test is being performed in-house?

Test results

Another method to encourage blood flow in patients whose blood is difficult to draw is _________ on the antecubital area for a few minutes before you begin the procedure to help make the veins stand out to the touch if not to the sight

To place a warm compress

The law regarding who performs venipuncture:

Varies from state to state

When more than a few drops of blood are required to perform tests, a _______ collection of blood is performed

Venous