- Why are Antiglycolytic agents used for collecting certain blood specimens?
- Which of the following needles has the largest diameter?
- What do the color codes on the stoppers of blood collection tubes indicate?
- What is the order of draw for a CBC?
- What does an Antiglycolytic agent do?
- What is the purpose of the glass particles in serum separator tubes?
- Which additive is usually present in a tube with a lavender stopper?
- What is the most common Antiglycolytic agent?
- What can cause clots in EDTA specimens quizlet?
- Which gauge needle is the smallest?
- Which additive can be found in four separate tubes with different stopper colors?
- How does NaF inhibit glycolysis?
- When should additive tubes be mixed?
- When an ETS Serum tube contains gel separator it is called?
- Which needle size is considered to have the largest lumen?
- What is the purpose of having a specific order for drawing specimens?
- What size needle is used for venipuncture?
- Which government agency regulates the quality of gloves worn?
- Which tube is filled first in the ETS order of draw?
- What is the most most important step in specimen collection?
- Is a 22 gauge needle bigger than 25?
Why are Antiglycolytic agents used for collecting certain blood specimens?
It preserves glucose for up to 3 days and inhibits the growth of bacteria.
ANTIGLYCOLYTIC AGENTS – SODIUM FLUORIDE combined with POTASSIUM OXALATE: …
Used to collect Ethanol specimens to prevent either a decrease in alcohol concentration due to glycolysis or and increase due to fermentation by bacteria..
Which of the following needles has the largest diameter?
Which of the following needle gauges has the largest diameter? A 13 gauge needle has the largest diameter of the choices provided.
What do the color codes on the stoppers of blood collection tubes indicate?
Vacutainer tubes have a color-coded plastic cap. The color code of the caps indicates the blood additives the tube contains. Additives are chemical substances that preserve the blood for processing in the laboratory. The additives include anticoagulants like EDTA, Sodium citrate and Heparin.
What is the order of draw for a CBC?
The draw order for specimen tubes is as follows: Red No Gel. Gold SST (Plain tube w/gel and clot activator additive) Green and Dark Green (Heparin, with and without gel) Lavender (EDTA)
What does an Antiglycolytic agent do?
The antiglycolytic agent is a substance that inhibits glycolysis or metabolism of glucose by the cells of the blood. … This physical separation prevents the cells from continuing to metabolize substances, like glucose, in the serum or plasma.
What is the purpose of the glass particles in serum separator tubes?
chapter 7 test questionsQuestionAnswerheparin prevents what from clotting by what? what does heparin do?by inhibitting thrombin formationwhich is the best tube for collecting and etholnol specimen?a gray topglass particles present in serum separator tubes do what?activate clotting52 more rows
Which additive is usually present in a tube with a lavender stopper?
EDTA-K2Collection Tubes for Blood SpecimensLavender Stopper Tube (two types): Dark Lavender or Clear LavenderAdditive:EDTA-K2Tube Type/Size:Plastic Tube 13 x 75Specimen Type:Whole Blood, PlasmaDraw Amount:4.0mL/2.0mL (pediatric tube)3 more rows
What is the most common Antiglycolytic agent?
A substance that inhibits the metabolism of glucose by cells in a specimen of blood. The most common antiglycolytic agents are sodium fluoride and lithium iodoacetate.
What can cause clots in EDTA specimens quizlet?
What can cause clots and EDTA specimens? Clots in EDTA specimens can be caused by in adequate mixing, a delay in mixing, or a delay in transferring a specimen collected in a syringe.
Which gauge needle is the smallest?
The gauge size of a needle indicates what the diameter of the lumen (opening) is. The higher the gauge, the smaller the diameter. For example, a 30 gauge needle has a narrower lumen than a 25 gauge needle….Plastic (Tapered 1.25″)Gauge SizeInner Diameter (mm)Color250.280Red270.203Clear
Which additive can be found in four separate tubes with different stopper colors?
EDTACardsTerm Blood specimen additive that inhibits metabolism of glucoseDefinition NaFTerm Additive found in 4 different tubes with different colorsDefinition EDTATerm Stopper color same for two different additives used by two departmentsDefinition Yellow197 more rows•May 9, 2014
How does NaF inhibit glycolysis?
NaF inhibits enolase, an enzyme acting late in the glycolytic pathway, and has no effect on enzymes that act early in the glycolytic pathway. … Glycolysis is instantly inhibited in erythrocytes, leukocytes and platelets when the blood pH is maintained between 5.3 and 5.9 with a citrate buffer.
When should additive tubes be mixed?
All additive tubes should be filled to their stated volumes. As most tubes contain an additive or clot activator that needs to be mixed with the blood sample, tubes need to be mixed immediately after drawing. Tubes with anticoagulants (i.e. EDTA) need to be mixed immediately to ensure that the specimen does not clot.
When an ETS Serum tube contains gel separator it is called?
Serum-separating tubes, also known as serum separator tubes or SSTs, are used in medical clinical chemistry tests requiring blood serum. … They contain a special gel that separates blood cells from serum, as well as particles to cause blood to clot quickly.
Which needle size is considered to have the largest lumen?
CardsTerm Whlch is the best tube for collecting an ethanol specimen? a) Potassium EDTA b) Siliceous earth c) Sodium citrate d) Sodium fluorideDefinition d) Sodium fluorideTerm Which needle gauge has the largest lumen? a) 18 b) 20 c) 21 d) 22Definition a) 1888 more rows•Jun 14, 2015
What is the purpose of having a specific order for drawing specimens?
To avoid cross-contamination of additives between tubes, blood must be drawn in a specific order. The procedure is the same for all types of tubes being used. It is vital that the order of draw is followed not only to avoid contamination, but also to make sure that the test results are accurate.
What size needle is used for venipuncture?
1 to 1.5 inchesA straight multisample needle is typically 1 to 1.5 inches (2.5 to 3.8 cm) in length and the gauge ranges from 20 to 22. Multisample needles are the standard choice for routine venipuncture in a patient with normal, healthy veins.
Which government agency regulates the quality of gloves worn?
FDAPhlebotomy final examQuestionAnswerwhich government agency regulates the quality of gloves worn when performing phlebotomy procedures?FDAWhat word means “condition of clotting”?thrombosisDoing this during the vein selection process is bad for the specimen.allowing the patient to pump his or her fist.153 more rows
Which tube is filled first in the ETS order of draw?
EDTA tubesThe order of draw is based on CLSI Procedures and Devices for the Collection of Capillary Blood Specimens; Approved Standard – Sixth Edition, September 2008. This standard recommends that EDTA tubes be drawn first to ensure good quality specimen, followed by other additive tubes and finally, serum specimen tubes.
What is the most most important step in specimen collection?
Venipuncture is the process of collecting or “draw- ing” blood from a vein and the most common way to collect blood specimens for laboratory testing. It is the most frequent procedure performed by a phle- botomist and the most important step in this proce- dure is patient identification.
Is a 22 gauge needle bigger than 25?
IV needles are sized by gauges, and the smaller the gauge number, the bigger the needle will be. … Nevertheless, 18, 20, and 22 gauge is the size you’ll encounter most frequently in most areas of nursing.