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Cert. Study
Phlebotomy need to know
| Question | Answer |
|---|---|
| what g value and minimum time are used in a centrifuge to effect good separation of clotted blood from serum | 1000 rpm for 10 minutes |
| a stat specimen | must be collected and tested immediately |
| what percentage of water in a human body is found within the cells | sixty |
| a way to prevent a hematoma is | holding pressure on the site with the arm straight |
| a blood sample collected into a tube without anticoagulant would contain | serum |
| With obese patients, excessive probing may | release tissue clotting factors |
| when blood leaves the right ventricle it enters the | right and left pulmonary arteries |
| when collecting blood from an infant or neonate, the best site for a skin puncture is | the medial or lateral section of the foot |
| the steps to be followed in response to discovering a fire may be remembered by the acronym | RACE |
| if a phlebotomist notices a patient eating during a glucose tolerance test, the correct procedure would be to | contact the physician to determine if the test should be continued |
| when preparing a site for venipuncture, which is not mandated | always start using iodine |
| which is ture of veins | all veins contain deoxygenated blood |
| what is the guideline for the use of gloves when performing a skin puncture | gloves must be changed between patients |
| which is not ture of arteries | arteries have a pulse |
| concerning the collection of a timed specimen, which is true | if a timed glucose is collected too early, the result could be falsely evaluated |
| which is ture of plasma | plasma contains fibrinogen |
| when using vaccum tubes, the proper order of draw is | red, light blue, gel separator, green |
| which is true concerning required neonatal screening for a PKU | never touch the filter paper directly to the puncture site |
| when performing capillary punctures on neonates, the following order of draw is mandated | hematology, chemistry, blood bank |
| a phlebotomist was scheduled to collect the 2-hour specimen for a gtt at exactly 0900. at 0915 the specimen has yet to be collected, what is the next step | collect the specimen and note time of collection |
| when dealing with forsenic samples, the "chain-of-custody" would be | documentation of each person who handled the specimen |
| two specimens that must be protected from light immediately after collecting is | bilirubin and carotene |
| two specimens tha tmust be kept at 37 degrees celcius is | cold agglutinins and cryofibrinogen |
| centrifuges should be checked on a regular maintenance using a tachometer that registers | revolutions per minute |
| when filling a glass capillary tube, follow the OSHA recommendation | use tubes wrapped in puncture resistant film |
| what is not an acceptable means of identification | name card on the bed or door |
| a blood specimen that do not need to be transported on ice water | amylase |
| which is the preferred artery for an arterial puncture | radial artery |
| what type of equipment is not required for an arterial blood gas | tourniquet |
| True or False? the best way to assure a good flow with less injury in a pediatric heelstick is to perform the stick as the previous site | False |
| for a 3-hour gtt, a patient wants to know when the final specimen will be collected, if he finished drinking the solution at 0710 | 1010 |
| what is mandated in preparation of a patient for a gtt | not fasting for more than 14 hours |
| instructing a patient on a procedure for collection of mid-stream, what is not neccessary | sample should always be the second voided of the day in order to reduce contamination |
| no other site is available, the patient has an IV in right arm, the phlebotomist must draw | below |
| a hemolyzed blood sample would have the greatest impact and cause elevated levels on what three tests | potassium, iron, magnesium |
| when collecting blood for trace metals analysis, what must be observed | avoid the use of an anticoagulant that binds metal |
| when collecting blood from a patient in reverse isolation, items removed from the room so not need to be double bagged. True or False | True |
| what preservative used in 24 hour urine collection will interfere least with the dipstick analysis and other urine chemical tests | boric acid |
| a blood sample tested for liver enzymes showed elevation of all liver enzymes except for LDH, what could be the cause | refrigeration of the blood sample |
| instructions for a 24 hour urine collection would indicate the starting and ending of collection. This means that | patient voids in the toilet and start timing with an empty bladder |
| action of SPS as an additive to blood culture containers include | complement inhibition |
| if the phlebotomist were unsuccessful upon the first stick, the next step is to | ask the patient if you could have an second attempt |
| what is the appropriate procedure for a disposable when using it multiple times | wipe with 70 percent alcohol |
| best marker to insure the completeness of a 24 hour uriine collection, would be | 4-aminoben zoic acid level |
| when preparing a patient's arm for a blood culture, what skin aspectic is used | iodine |
| from the standpoint of patient safety, what is the most dangerous practice | prelabeling the tubes before collection |
| what anticoagulant do not bind calcium | heparin |
| what additive is a true anticoagulant | sodium citrate |
| what is ture of capillary punctures done on the finger tips | insert perpendicular to the fingerprint |
| which antiglycolytic agents is preferred because it does not interfere with urease and allows the same blood sample to be tested for BUN and glucose | sodium iodoacetate |
Created by:
lclindsey
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