Chapter 9
Preexamination
Preanalytical
Medical Errors
Blood Collection
100
A solid mass derived from blood constituents that occludes a blood vessel is a
What is Thrombus
100
An abnormal accumulation of fluid in the intercellular spaces of the body that is localized or diffused is referred to as
What is Edema
100
Upon entering Ms. Newhouse's hospital room, the phlebotomist introduced herself and explained she was going to collect blood for laboratory tests requested by the physician. The patient became very anxious and said she was frightened of needles; then she started sweating from being frightened of the procedure. This patient's emotional stress could lead to a decrease in which of the following
What is Serum Iron Level
100
When hemoglobin is released from RBCs and serum becomes tinged as pink or red, this condition is referred to as
What is Hemolysis
100
Hemolysis in collected blood can cause a falsely decreased value for
What is Hemoglobin
200
What is If the tourniquet is applied to the arm for longer than 2 minutes, which of the following analytes will most likely become falsely elevated
Potassium
200
Which of the following laboratory test results is affected most if the patient is not fasting
What is Triglyerides
200
Which of the following has been shown to erroneously affect laboratory test results, leading to falsely elevated WBC counts
What is Violent Crying
200
A decrease in the plasma volume occurring with an increased concentration of cells and larger molecules such as cholesterol is referred to as
What is Hemoconcentration
200
Which of the following analytes will be falsely increased when a sodium citrate blood collection tube is underfilled
What is PT
300
What is When blood is to be collected for a glucose tolerance test, the patient should fast for
What is 12 hours
300
Diurnal rhythm has a major effect on which of the following blood analytes
What is ACTH
300
Swelling in the area around a venipuncture site usually leads to
What is Hematoma Formation
300
Which of the following occurs as the result of inflammation and disease of the interstitial compartments
What is Sclerosed Veins
300
Which of the following clinical laboratory departments usually use serum separator tubes for many of their blood collections
What is Clinical Chemistry
400
A basal state
What is in the early morning, 12 hours after the last ingestion of food
400
Which of the following is another term for fainting
What is Syncope
400
Which of the following should stop the health care worker from collecting blood from a patient's arm vein
What is Mastectomy on the same side
400
If a patient begins to have a seizure during venipuncture, the phlebotomist should immediately
What is releases the tourniquet
400
What additive destroys the enzymes in the blood when the gray-topped tube is used to collect blood
What is Sodium Fluoride
500
Which of the following analytes is significantly increased in the blood with changes in position
What is Calcium
500
When the phlebotomist collected blood from the patient, the patient was in a supine position, meaning the patient was
What is Lying
500
Which of the following would most likely not be an explanation for turbid serum
What is Elevated Glucose
500
When a patient is on IV therapy and the venipuncture must occur in the arm with the IV line, the
What is nurse should shut off the IV line for 2 minutes prior to the venipuncture
500
Which of the following laboratory test results are affected most if the patient is not fasting
What is Glucose