Lipid Profile and Laboratory Tests

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What information is NOT included in a lipid profile?

Triglycerides

Glucose (correct)

HDL cholesterol

Total cholesterol

Why is the clinical diagnosis indicated on the laboratory request form?

To alert laboratory personnel to the presence of a possible pathogen

To identify the source of the specimen

To assist in third-party billing (correct)

To inform laboratory personnel of the patient's prognosis

What is the purpose of a laboratory report?

To relay the results of laboratory tests to the physician (correct)

To indicate the patient prognosis

To indicate the patient diagnosis

To order laboratory tests on a patient

What is the purpose of the patient accession number found on the laboratory report?

To provide identification of each specimen in the laboratory Signup and view all the answers

What is a profile?

An array of laboratory tests for identifying a disease Signup and view all the answers

What information is included in a laboratory request form?

Patient's age and gender Signup and view all the answers

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 Signup and view all the answers

What should be done when assembling equipment and supplies for a venipuncture?

Check the expiration date of the blood tubes Signup and view all the answers

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. Signup and view all the answers

What is the primary purpose of applying a tourniquet when performing venipuncture?

Make the patient's veins more visible and easier to palpate Signup and view all the answers

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 Signup and view all the answers

What should be done to the blood tube after collecting a venous blood specimen?

Label each blood tube with a unique patient identifier Signup and view all the answers

What may occur if a tourniquet is applied too tightly?

The venous blood flow may be obstructed Signup and view all the answers

Which antecubital vein is considered the best for a venipuncture?

Median cubital vein Signup and view all the answers

What is an error in technique when selecting a vein for venipuncture?

Not examining the antecubital veins of both arms Signup and view all the answers

What happens to a blood specimen on standing when an anticoagulant is added?

The blood separates into plasma, buffy coat, and blood cells Signup and view all the answers

How is serum obtained?

From clotted blood that has been centrifuged Signup and view all the answers

What technique violates the OSHA standard when performing a venipuncture?

Recapping a needle Signup and view all the answers

What is the correct way to store evacuated tubes?

At room temperature Signup and view all the answers

What is the minimum volume of serum required for an electrolyte profile test?

4 mL Signup and view all the answers

What is the consequence of making a finger puncture deeper than 3.1 mm?

All of the above Signup and view all the answers

Why should the finger not be squeezed during a capillary puncture?

To avoid diluting the blood sample with tissue fluid Signup and view all the answers

What type of tube is used for PTT testing?

Light blue-stoppered tube Signup and view all the answers

What is the correct sequence of actions when collecting a blood specimen?

Remove the needle, then remove the tourniquet Signup and view all the answers

What is the correct location to apply a tourniquet during a venipuncture?

1 inch above the bend in the elbow Signup and view all the answers

What gauge needle is commonly used for a routine venipuncture using the vacuum tube method?

21 G Signup and view all the answers

What factor determines the size of the evacuated tube to be used?

Amount of specimen required for the test Signup and view all the answers

Which site should be avoided for venipuncture?