30 Questions
What information is NOT included in a lipid profile?
Glucose
Why is the clinical diagnosis indicated on the laboratory request form?
To assist in third-party billing
What is the purpose of a laboratory report?
To relay the results of laboratory tests to the physician
What is the purpose of the patient accession number found on the laboratory report?
To provide identification of each specimen in the laboratory
What is a profile?
An array of laboratory tests for identifying a disease
What information is included in a laboratory request form?
Patient's age and gender
When collecting a venous blood specimen to be transported to an outside laboratory for testing, what source of information should be used for collecting and handling requirements?
Laboratory directory or website
What should be done when assembling equipment and supplies for a venipuncture?
Check the expiration date of the blood tubes
When collecting a venous blood specimen, what would be an inappropriate statement to make to the patient during the procedure?
We will give you an anesthetic to numb the area.
What is the primary purpose of applying a tourniquet when performing venipuncture?
Make the patient's veins more visible and easier to palpate
Which of the following is a correct technique for applying a tourniquet?
Placing the tourniquet 3 to 4 inches above the bend in the elbow
What should be done to the blood tube after collecting a venous blood specimen?
Label each blood tube with a unique patient identifier
What may occur if a tourniquet is applied too tightly?
The venous blood flow may be obstructed
Which antecubital vein is considered the best for a venipuncture?
Median cubital vein
What is an error in technique when selecting a vein for venipuncture?
Not examining the antecubital veins of both arms
What happens to a blood specimen on standing when an anticoagulant is added?
The blood separates into plasma, buffy coat, and blood cells
How is serum obtained?
From clotted blood that has been centrifuged
What technique violates the OSHA standard when performing a venipuncture?
Recapping a needle
What is the correct way to store evacuated tubes?
At room temperature
What is the minimum volume of serum required for an electrolyte profile test?
4 mL
What is the consequence of making a finger puncture deeper than 3.1 mm?
All of the above
Why should the finger not be squeezed during a capillary puncture?
To avoid diluting the blood sample with tissue fluid
What type of tube is used for PTT testing?
Light blue-stoppered tube
What is the correct sequence of actions when collecting a blood specimen?
Remove the needle, then remove the tourniquet
What is the correct location to apply a tourniquet during a venipuncture?
1 inch above the bend in the elbow
What gauge needle is commonly used for a routine venipuncture using the vacuum tube method?
21 G
What factor determines the size of the evacuated tube to be used?
Amount of specimen required for the test
Which site should be avoided for venipuncture?
All of the above
What technique can prevent a vein from rolling during venipuncture?
Applying firm pressure below and to the side of the vein
What may result in hemolysis of the blood specimen?
Not labeling the blood tube
This quiz covers various aspects of laboratory tests, including lipid profiles, test results, and patient information. It also explores the components of a lipid profile and the importance of these tests in disease diagnosis. Test your knowledge of laboratory tests and their applications!
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
