PRE-ANALYTICAL CONSIDERATIONS IN PHLEBOTOMY Flashcards
(33 cards)
events or actions that take place before laboratory
testing
Pre-Analyitcal Testing Phase
identify factors that affect the process and address them as
needed
Phlebotomist’s role
Red Blood Cells (RBC), White Blood Cells (WBC), Creatinine Clearance
Age
Red Blood Cells
Altitude
Hemoconcentration, RBC, Enzymes, Iron (Fe), Calcium (Ca), Sodium (Na)
Dehydration
Glucose, Lipids, Electrolytes
Diet
Thyroid Stimulating Hormone (TSH), Cortisol, Iron (Fe)
Diurnal Variation
Enzymes, Hormones
Drug Therapy
pH, PCO2, Creatine Kinase (CK), Lactic Acid Dehydrogenase (LDH), and Glucose
Exercise, IM Injection
Hormones, Cortisol
Fever
RBC, Hemoglobin, Hematocrit
Gender
Yellow color interfaces due to increased bilirubin
Jaundice
Creatine Kinase (CK), Skeletal Muscle Fraction of LDH
Intramuscular Injection
Protein, Potassium (K)
Position
RBC
Pregnancy
Cholesterol, Cortisol, Glucose, Growth Hormone (GH), Triglyceride, WBC
Smoking
WBC, Iron (Fe), Adrenocorticotropic Hormone, Catecholamine, Cortisol
Stress
Hemoconcentration
Temperature and Humidity
too painful; circulation is impaired, areas with tattoos prone to infection and colorimetric analysis due to dyes
Burns, Scars, and Tattoos
sclerosed, hardened, or clotted
Damaged Vein
Abnormal swelling due to accumulated interstitial fluid. Locating veins becomes harder.
Edema
removal of the breast during surgery. May cause swelling and
infection due to obstruction of lymph nodes.
Mastectomy
veins become deep and difficult to palpate
Obesity
Swelling or mass of blood in tissues due to leakage. Caused by
venipuncture. Painful for patient if selected as a site.
Hematoma