Phlebotomy IV Flashcards
(27 cards)
In a healthcare setting, what is the primary mechanism for the transmission of microorganisms?
Human hands
Phenylketonuria (PKU) is caused by a deficiency in which enzyme?
Phenylalanine hydroxylase
What is the main function of megakaryocytes in the bone marrow?
The main function of megakaryocytes in bone marrow is production of platelets.
What critical step must always be included to ensure patient safety during blood donation?
Properly sanitizing the site of venipuncture.
What is the preferred method of specimen collection for a blood sample?
Venipuncture
Which type of microscope is mostly used in the identification of Malaria parasitic forms in stained blood smears?
Light microscope
What is the primary purpose of Vascular Access Devices?
The primary purpose of vascular access devices is both to administer medications and to draw blood.
The syringe component that is tasked with the function of storing and measuring various liquids, and into which the needle fits snugly, is called?
The barrel
What is the correct position for a patient’s arm during a fingerstick?
Hyperextended
What is another name for veins that are superficial, meaning they are close to the skin surface?
Superficial veins
What effect does temperature have on enzyme activity?
Temperature can either increase or decrease enzyme activity.
What is the primary reason a phlebotomist should not use their thumb during venipuncture?
The thumb contains a pulse, which can be mistaken for a vein
What is the most common site for performing venipuncture on adult patients?
The antecubital fossa, which is the inner bend of the elbow, is the most common site for venipuncture.
Which of the following changes
most when a patient stands after lying down or sitting for a period of time?
Blood pressure
Where are capillary punctures performed on children under one year of age?
On the medial or lateral surface of the infant’s heel.
In addition to the name of the patient and the phlebotomist collecting the sample, who else is named on chain-of-custody paperwork?
Anyone who has handled the specimen.
What is the correct order of draw for blood collection tubes?
- Blood Cultures 2. Coagulants (light blue) 3. Serum tubes 4. Heparin tubes 5. EDTA tubes
According to Clinical Laboratory Standards Institute (CLSI) standards, a phlebotomist who must identify an unconscious patient can:
Have a woman who claims to be the patient’s girlfriend provide the name and date of birth.
After what time duration will a urine sample kept at room temperature become unstable?
After two hours a urine sample kept at room temperature will become unstable.
When collecting a 24-hour urine sample, what is the last sample the patient should be instructed to collect?
The first void of the second morning.
The xylose tolerance test is an indication of the absorption function of which organ?
Small intestine
Sputum samples are collected by coughing up phlegm and mucus from the:
Upper respiratory tract
The correct order in which to doff
Personal Protective Equipment (PPE) is:
Gloves, goggles, gown, mask
What is a possible complication with fasting?
Hypoglycaemia
