Why do you avoid placing a bandage on the puncture site after administering a TB skin test?
This could interfere with the test results
100
Why is it important not to massage the site after this injection?
Because this can cause bruising
100
Why do you gently tap the site after it is chosen?
This stimulates the nerve endings and reduces pain caused by the needle insertion
100
Why do you palpate the proposed site with your index finger to locate the vein?
To ensure you have located a vein; which will feel "spongy" or will "bounce back" **NOTE** If you feel a pulsating beat then you have located an artery; DO NOT DRAW BLOOD FROM AN ARTERY!
100
Why would you place a patient's hand under warm running water if his/her hands were cold prior to a capillary puncture?
Warming the patient's hands improve circulation
200
Why is it important to measure the wheal in 48-72 hours?
This determines if test is negative (<5mm), at risk (5-10mm), or positive (>10mm)
200
Why do you pinch the skin before inserting the needle when administering this type of injection?
To lift the subcutaneous tissue
200
Why is the Dorsogluteal site rarely used when administering this injection?
Because of the chances of hitting the sciatic nerve
200
Why should the tourniquet be tight?
To make the veins in the forearm stand out more prominently
200
Why do you wipe away the first droplet of blood during a capillary puncture?
This droplet is usually contaminated with tissue fluids released when the skin is punctured
300
Why do you let the skin dry after wiping area with alcohol?
To prevent you from introducing antiseptic under the skin; which could cause infection and falsify results of the test
300
Why do you aspirate before injecting the drug?
To check the placement of the needle; to ensure you are not in a vein
300
Why is it important to consider a patient's layer of fat when choosing a site?
If a patient is heavy in the thigh or buttock area, the deltoid area will be the best site; since will more than likely penetrate beyond the fat layer to muscle
300
Why do you hold the patient's skin taunt below the insertion site?
To anchor the vein so it does not roll
300
Why do you apply steady pressure to a patient's finger instead of "milking" his/her finger during a capillary puncture?
Milking the finger dilutes the blood sample with tissue fluid and causes hemolysis
400
Why do you avoid areas that are scarred, blemished, or hairy when choosing an injection site?
Those types of areas can interfere with the ability to interpret test results on the skin
400
Why is it important to position the needle at a 45 degree angle?
To ensure the medication is administered into the correct location
400
Why do you consider needle gauges chosen prior to this injection?
It depends on the thickness of the medication given
400
Why should the tourniquet be left on no longer than 1 minute?
Longer periods may cause hemoconcentration (hematoma), an increase in the blood-cell to plasma ratio, and invalidate test results
400
Why is the patient's middle or ring finger punctured on the side instead of the center during a capillary puncture?
To avoid nerve damage
500
Why is it important to stay with a patient after administering a TB skin test?
To monitor him/her for unexpected reactions
500
Why is it important to rotate sites when administering this injection?
This promotes drug absorption and prevents hard subcutaneous lumps from forming
500
Why do you ask patients if they have an egg allergy prior to administering a flu vaccine?
Because the influenza vaccine includes an egg protein
500
Why do you invert tube(s) slowly several times after venipuncture is completed if tube(s) contain additives?
To mix chemical agent and the blood sample
500
Why must you remove the tourniquet before you withdraw the needle from the vein?
Removing the tourniquet releases pressure on the vein