FREE NAPTP Phlebotomy Preparations Question and Answers
Vacutainer System
The Vacutainer System consists of a Vacutainer holder (also known as a Vacutainer adapter), a needle, and sample tubes. This system allows for a more automated method of drawing blood by using vacuum pressure to fill sample tubes with blood during venipuncture.
Whole Blood:
The correct answer is "Blood from which none of the elements have been removed." This means that whole blood refers to blood that has not had any of its components, such as red blood cells, white blood cells, platelets, or plasma, removed. It is a complete sample of blood that contains all of its natural components.
Basilic Vein
The Basilic Vein is a large vein located on the inner side of the bicep. It is commonly used for venipuncture procedures and for intravenous access.
EDTA
EDTA (ethylenediaminetetraacetic acid) is a calcium binding agent that is commonly used as an anticoagulant. It works by chelating or binding to calcium ions, which are necessary for the coagulation process. By removing calcium ions, EDTA prevents the blood from clotting, making it an effective anticoagulant. This property makes it useful in various medical and laboratory settings, such as blood collection tubes or in certain medical procedures where anticoagulation is required.
Pink tube is used for
The pink tube is used for blood banking. Blood banking involves the collection, testing, processing, and storage of blood and blood components for transfusion. The pink tube is specifically used for collecting samples for blood banking purposes, such as cross-matching and antibody screening. This tube contains an anticoagulant called EDTA, which helps prevent the blood from clotting and allows for accurate testing and storage.
What are the two tiers or levels of precautions?
The two tiers or levels of precautions are standard precautions and transmission-based precautions. Standard precautions are a set of infection control practices that are applied to all patients, regardless of their diagnosis or presumed infection status. These precautions include hand hygiene, the use of personal protective equipment, safe injection practices, and respiratory hygiene. Transmission-based precautions, on the other hand, are additional precautions that are used for patients with known or suspected infections that are spread through specific routes, such as airborne, droplet, or contact transmission. These precautions include the use of specialized personal protective equipment and specific isolation measures to prevent the spread of the infection.
What is the main difference between arterial and venous blood?
The main difference between arterial and venous blood is the oxygenation level. Arterial blood is oxygenated, meaning it carries oxygen from the lungs to the body's tissues. On the other hand, venous blood is deoxygenated, as it has already delivered oxygen to the tissues and is returning to the heart and lungs to be reoxygenated. The statement "arterial blood is oxygenated, venous blood is deoxygenated" accurately describes this distinction.
Hyperglycemia
Abnormally high blood sugar levels, also known as hyperglycemia, occur when there is an excessive amount of glucose in the bloodstream. This can happen due to various reasons such as insufficient insulin production, insulin resistance, or certain medical conditions. Hyperglycemia can lead to symptoms such as increased thirst, frequent urination, fatigue, and blurred vision. If left untreated, it can cause serious complications such as diabetic ketoacidosis. Therefore, abnormally high blood sugar levels are a correct explanation for hyperglycemia.
Lavender Tubes contain
Lavender Tubes contain EDTA, which stands for ethylenediaminetetraacetic acid. EDTA is an anticoagulant that prevents blood from clotting by binding to calcium ions, which are necessary for the coagulation process. This type of tube is commonly used for hematology tests, such as complete blood count (CBC), as it preserves the blood cells and prevents clotting during transportation and analysis.
Tourniquet
The correct answer is "Constrictive band used for venipuncture, blood aspiration and intravenous injections." This answer accurately describes the purpose and use of a tourniquet. It is a constrictive band that is applied to a limb to temporarily stop or slow down the flow of blood, making it easier to locate and access veins for procedures such as venipuncture, blood aspiration, and intravenous injections.
PTT is the abbreviation for:
PTT stands for Partial Thromboplastin Time, which is a laboratory test used to measure the time it takes for blood to clot. It is commonly used to monitor the effectiveness of blood-thinning medication, such as heparin. The test measures the time it takes for a clot to form after certain substances are added to a blood sample. By measuring PTT, healthcare professionals can assess a patient's risk of excessive bleeding or blood clotting disorders.