Quiz 6 - Ch 9 & 11 Flashcards
What is the correct identification procedure when an unidentified person is brought to ER
You must wait until the identity of the patient has been confirmed before collecting the blood
A phlebotomists who encounters a comatose patient with no ID band should
Ask the nurse to band the patient
What should a phlebotomist do when a patient is sleeping
Gently wake the patients and allow him or her to become oriented
When must a phlebotomist document the name of the person who has verified a patients identity
When the patient is cognitively impaired
Increased Hgb levels
Tobacco
Decreased glucose
Prolonged fasting
Increased WBC
Erect posture
Increased skeletal enzymes
Long term exercise
Increased cholesterol level
Stress
A patient who appears pale and has a cold, damp skin may develope
Syncope (fainting)
When a patient refuses to have his or her blood drawn the phlebotomist should
Document the patients decision and notify the nursing personnel
When a patient developed a seizure, the phlebotomist should
Document the time the seizure started and ended
Hemoconcentration can be caused by
Tourniquet applied for longer than 1 minute
Which of the following methods can be used to locate veins that are not prominent
Tapping the patients arm
Physician approval is required when collecting blood from
A patients foot and leg veins
Which of the following areas should be used for venipunctures
Deep cephalic
What complication can occur when you draw blood from an arm located on the same side of the body as a patients mastectomy
Lymphedema
When encountering a patient with an AV fistula, the phlebotomist should
Use the other arm
Which of the following is acceptable when collecting blood using a winged blood collection set
Collecting blood into a syringe
If the plunger of a syringe is pulled back too quickly
The specimens may be hemolyzed
What can cause blood to flow slowly into the tube while leaking into the tissue causing a hematoma
Needle insertion angle is too shallow
Which of the following techniques is acceptable when blood is not obtained after needle insertion
Gently pulling the needle back and redirecting the needle in a forward motion
A patient verbalizes a shooting burning and tingling pain when the needle is inserted. This could be caused b y
Nicked nerve
What should you do first when a patient develops syncope
Firmly anchoring the vein during the needle inerstion
What error in technique can hemolyses a blood specimen.
Using needle with too small of a diameter
Which of the following is most critically affected in a hemolyzed specimen
Potassium
A puncture site may require additional pressure to stop bleeding when the patient
Frequently takes aspirin
Which of these would cause a laboratory to reject a specimen
Clots in a lavender stopper tube
Dermal punctures are often performed on
Patients receiving chemotherapy, geriatric patients, and diabetic patients
Drawing excess amounts of blood from premature infant can cause
Latrogentic anemia
Which of the following tests must be collected by capillary blood
Newborn screening tests
The concentration of the analyte is higher in blood collection by dermal puncture than by venipuncture
Glucose
When a dermal puncture device is selected the most critical consideration is the
Depth of the incision
The equipment required for a dermal puncture excludes
A tourniquet
On newborns dermal punctures are performed on the
Medial or lateral plantar areas of the heel
The maximum length of a puncture device used on the heel is
2mm
Selection of an improper heel puncture site can result in
Puncture of the calcaneus
Failure to puncture across the fingerprint will cause
Blood to run down the finger
Why should a dermal puncture collection site be warmed
To increase blood flow
Wiping away the first drop of blood
Prevents specimen contamination
Failure to allow alcohol to dry on the puncture site may cause
Inability to form a round drop, specimen contamination, and RBC hemolysis
The order of draw for bilirubin, blood smear, and CBC by dermal puncture is
Blood smear, CBC, and bilirubin
The blood specimen for this test must be protected from light
Bilirubin
Why do phlebotomists perform their routine blood collections early in the morning
Patients are in a basal state
What should you do first when a patient developed syncope
Remove the tourniquet and needle
