MEDCA EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

MEDCA EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 Pathology - Answers The study of nature and the cause of disease How many liters of blood does the body contain? - Answers 5 liters Erythrocytes - Answers Red blood cells Leukocyte - Answers White blood cell Thrombocytes - Answers Platelets 120 days - Answers How long does mature red blood cells live once they enter blood stream Hemoglobin - Answers Iron containing pigment of red blood cells Pre-analytical phase - Answers Phlebotomist are primarily responsible for this phase of lab testing Blood collected in neonatology department - Answers This is Done for patients who are hours to a few days old Pharmacy department - Answers Primary consultant on timing for collecting blood for drug levels Where blood cells begin formation - Answers Lymph nodes and bone marrow Flowchart - Answers Used in quality improvement methodologies and designed to assist in breaking out components into diagram to understand a process Quality improvement for specimen collection involve - Answers -Phlebotomist technique -Recollection rates -Frequency of hematomas Pareto charts - Answers Designed to assist in making bar charts that show frequency of problems Anemic - Answers A person who has too little hemoglobin or a decreased number of red blood cells Type and cross match - Answers Process of determining if a person will react after a transfusion Total volume of formed elements of blood - Answers 45% total volume of blood liquid makes up - Answers 55% Serum - Answers When blood is removed from body, blood clots and the liquid portion is called Centrifuge - Answers Instrument used to speed the removal of serum by spinning the blood Supine position - Answers Lying face up on back RFID - Answers Identification tag using silicon chips and a wireless receiver Normal Blood pH range - Answers 7.35 to 7.45 Blood for lead levels are collected in - Answers Tan topped tubes 2 hours - Answers Within how many hours should Serum be transported to lab for testing and separated from red blood cells, preventing erroneous results Acid citrate dextrose - Answers Anticoagulant used in blood donations To avoid micro clotting in tube, important that blood be collected - Answers Why should the purple topped tube be gently inverted a minimum of 8 times Why should Clean gloves be put on in front of patient - Answers It is a reassuring safety conscious gesture for both patient and worker Pneumatic tube system - Answers Most efficient and safe methods of specimen transportation in large health care organization Royal blue topped tube - Answers Measurement of blood cooper trace element Computerized labels using bar codes - Answers Most reliable method for avoiding transcription errors in specimen collection Dorsal side of hand and wrist - Answers If veins in arm cannot be used for venipuncture where the preferred alternative veins lie Glucose level - Answers Most commonly requested timed specimen When collecting blood in evacuated tube with an anticoagulant, what is the importance of having correct volume of blood? - Answers It provides the correct blood additive ratio When are Skin puncture techniques are most often used? - Answers When Small amounts of blood are needed for testing, neonate or anemic How many chromosomes are in human cells - Answers 46 chromosomes Therapeutic phlebotomy is used in treatment of - Answers Polycythemia In relation to veins, what does occluded mean - Answers Obstructed Which finger has a pulse - Answers Thumb Last step in any phlebotomy procedure, including skin puncture - Answers Check that the bleeding has stopped and thank the patient for cooperating What causes pooling of blood in veins - Answers Tourniquet What is the Best way to decontaminate phlebotomist hands if they are visibly dirty with dust and dirt - Answers Wash hands with soap and water Alcohol should be allowed to dry for how many seconds before venipuncture - Answers 30-60 seconds During venipuncture, what is the best angle for inserting the needle into the skin - Answers 15-30 degrees During venipuncture procedure, what does phlebotomist do after needle is inserted and blood begins to flow - Answers Release the tourniquet The term butterfly refers to - Answers The winged infusion set During venipuncture, the needle should always be inserted with - Answers Bevel side up What is the antecubital area - Answers Slightly below the elbow What is importance of hand hygiene techniques - Answers It significantly reduces the number of outbreaks of infections Why should blood and urine specimens for microbiological culture be transported to the labs quickly - Answers To improve the likelihood of detecting pathogens Approximately how long does it take a normal blood specimen to clot - Answers 30-60 minutes Quality control records include information about - Answers -Proper use and storage -Expiration dates and stability -Precision and accuracy of testing supplies/reagents Glycolytic action refers to which condition - Answers Breakdown of glucose Bar codes in phlebotomy applications can be used for - Answers -Specimen accession numbers, test codes -Product number, inventory expiration dates -Patient names, DOB, patient identification number Which anticoagulant is found in Royal blue topped tube - Answers No anticoagulant Lithium heparin is suitable anticoagulant for which study - Answers Stat chemistry Preferred anticoagulant for collection of whole blood for STAT situations in clinical chemistry - Answers Heparin Which Needle gauges has smallest diameter - Answers 23, the larger gauge has the smaller the needle Intravenous device used in collecting blood from patients who are difficult to collect blood by conventional methods - Answers Butterfly needle Blood cell count requiring whole blood collection - Answers Purple topped tube What tube should Alkaline phosphate never be collected in - Answers Gray topped tubes Color coding for needles indicates - Answers Gauge Light sensitive blood analytes - Answers Bilirubin Monoject monoletter - Answers Safety device for collecting capillary blood Yellow topped vacuum collection tube has what additive - Answers Sodium polyanetholesulfonate (SPS) For newborns the penetration depth of lancets for blood collection must be less than - Answers 2.0 mm Cytogenetic analysis requires whole blood collected in which tube - Answers Green topped tube Report form for lab results include - Answers -Patient and physician identification -Date and time collected -Reference ranges