Laboratory Flashcards
A basic screening test and is one of the most frequently ordered laboratory tests in the Hematology Section.
Complete Blood Count (CBC)
The most commonly used specimen for CBC is:
Whole Blood
A pathological condition that involves increased number of leukocytes in the blood, indicating an infection during WBC count.
Leukocytosis
The percentage of each cell type of WBC, e.g. neutrophil, eosinophil, basophil, lymphocyte, and monocyte, is reported by means of which CBC component?
Differential Leukocyte Count
Increased number of NEUTROPHILS during Differential Leukocyte Count would likely indicate:
Bacterial Infection
Increased number of EOSINOPHILS and BASOPHILS during a Differential Leukocyte Count would likely indicate:
Allergic Disorders and Parasitism
Increased number of MONOCYTES during a Differential Leukocyte Count would likely indicate:
Chronic Infection
Increased number of LYMPHOCYTES during a Differential Leukocyte Count would likely indicate:
Viral Infection
Which type/s of WBCs would be increased in case of bacterial infection?
Neutrophil
Which type/s of WBCs would be increased in case of allergic disorders and parasitism?
Eosinophil and Basophil
Which type/s of WBCs would be increased in case of chronic infection?
Monocyte
Which type/s of WBCs would be increased in case of viral infection?
Lymphocyte
They carry oxygen from the lungs to the body tissues.
Erythrocytes or Red Blood Cells (RBCs)
To transfer carbon dioxide from the tissues to the lungs, which component of RBCs combines readily with O2 and CO2?
Hemoglobin
Decreased RBC count could be an indication of:
Anemia
It serves as a vehicle for the transportation of oxygen and carbon dioxide, giving the RBC the characteristic red color.
Hemoglobin
Which component of CBC determines the percentage of packed RBC in whole blood?
Hematocrit
Under Hematocrit determination, plasma and blood cells are separated by:
Centrifugation
Under Hematocrit determination, what is being measured after centrifugation as it could indicate whether the body is producing less or too much RBCs?
Height of RBC Column
It is a component of CBC which is used to evaluate bleeding disorders, bone marrow diseases, and excessive clotting disorders?
Platelet or Thrombocyte Count
This component of whole blood plays a crucial role/function in the coagulation of blood.
Platelets or Thrombocytes
When a patient is diagnosed with dengue fever, he or she is likely to have (increased, decreased) platelet count.
Decreased
The determination of various coagulation factors is performed under:
Coagulation Studies
These are proteins circulating in the blood that are essential for proper blood clot formation.
Coagulation Factors
‘PT’ under Coagulation Studies stands for:
Prothrombin Time
‘aPTT’ under Coagulation Studies stands for:
Activated Partial Thromboplastin Time
True or False
Aside from PT and aPTT, Coagulation Studies may also encompass the assessment of blood clotting functions in patients.
True
What is the most commonly used specimen in the Clinical Chemistry Section of a Clinical Laboratory?
Serum
True or False
Blood to which an anticoagulant has been added will clot.
FALSE
Blood + Anticoagulant = UNCLOTTED BLOOD
True or False
If a blood is mixed with an anticoagulant, blood cells will settle to the bottom of the tube leaving serum at the top of the tube.
FALSE
Blood + Anticoagulant = UNCLOTTED BLOOD = PLASMA
When blood to which an anticoagulant has been added does not exhibit clotting, it would eventually form three layers. Which among these three would contain WBCs and platelets?
Middle Layer, BUFFY COAT
True or False
Blood to which NO anticoagulant has been added will clot.
TRUE
True or False
In a clotted blood, blood cells get caught in the clot which leaves plasma behind.
FALSE
CLOTTED BLOOD = SERUM
Which analyte is a product of carbohydrate metabolism which serves as the chief source of energy for living organisms?
Glucose
Utilization of glucose is controlled by which hormone?
Insulin
Fasting Blood Sugar requires which type of blood specimen?
Fasting Specimen
Ideal fasting hours for FBS testing.
10 hours
Which test under the Clinical Chemistry section is used to screen for hyperglycemia and hypoglycemia; to help in the diagnosis of diabetes mellitus; and to monitor glucose levels in persons with diabetes?
Fasting Blood Sugar (FBS)
What are the three analytes that play relative clinical significance in Renal Function Tests?
Urea, Creatinine, and Uric Acid
It is considered as the end product of protein metabolism that is normally cleared from the blood by the kidney into the urine.
Urea
It is formed by the breakdown of creatine during muscle metabolism.
Creatinine
