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Practice test
| Question | Answer |
|---|---|
| What is another term for infection | Sepsis |
| Which of their following is the most commonly used antiseptic for routine blood draws? | Isopropyl alcohol |
| Which of the following actions is the first that should be taken immediately after withdrawing the needle from patient | Apply pressure puncture to the site |
| Which needle size is most commonly used for routine venipuncture | 21 gauge |
| What is the term for the hollow tube inside a needle’s shaft | Lumen |
| Which part of a needle attaches to the collecting tube or syringe | Hub |
| What does the term multi sample needle mean | The needle has a retractable rubber sleeve that covers one end of the needle Sheba blood collecting tube is not attached |
| Which of the following is the most common size of a butterfly needle | 23 gauge |
| The anticoagulant EDTA works by binding which substance needed for blood clotting | Iron |
| Which anticoagulant is used for coagulation studies | NA+ citrate |
| What color tube should be collected for CBC | Lavender |
| A tube containing thixtropic gel could be used to collect blood for which of the following tests | Chemistry screen |
| What color tube should be collected for coagulation studies | Light blue |
| Which of the following is the only tube that does not need to be inverted to mix after drawing | Red glass |
| For maximum effectiveness an antiseptic should be left in contact with the skin for how long | 30-60 seconds |
| What color vacuum tube should be drawn for trade metal analysis | Royal blue |
| Shaking a tube rather than gently inverting it can have what effect on the blood | Hemolysis |
| Completely filling a light blue tube will maintain what ratio | 9 parts blood and 1 part sodium citrate |
| What is the appropriate equipment selection when performing venipuncture on fragile, easy to collapse veins | Needle and syringe set up |
| Before drawing blood in an inpatient setting information found on the requisition form should be matched against which of the following | The patients wristband |
| What is the single most important step of the blood collection procedure | Patient identification |
| At what angle should the venipuncture needle be inserted | 15-30 degrees |
| In which of the following choices are the steps in the correct order | Select equipment,identify patient,collect specimen,stop bleeding,label tubes |
| If the number on the requisition does not match the arm band what should you do | Contact the patients nurse to attach proper ID wrist band to the patient |
| If a blood test requires a fasting specimen what is the best way to verify that the patient is fasting | Ask the patient when the last time was that he had anything to eat or drink |
| When you tell a patient that you need to draw blood he says that he does not want his blood drawn what is the appropriate action | Explain the procedure and ask if the patient if he will consent |
| How far from the puncture site the tourniquet be placed | 3-4 inches above the puncture site |
| What is the term for an increase in the ratio formed elements to plasma | Hemolysis |
| What is the term for destruction of the red blood cells due to a tightly tied tourniquet | Hemolysis |
| What term for the small red spots in the skin that are caused by a tightly tied tourniquet | Petechiae |
| Hemoconcentration can occur in which of the following situations | The tourniquet was left on for 2 mins |
| Which of the following veins is the most common second choice when the median cubital vein is nit appropriate for withdrawing a blood sample | Cephalic vein |
| Which vein lies on top of the brachial artery | Basilic |
| How should a needle be inserted for venipuncture | Bevel up very slowly |
| If the needle is withdrawn before the tourniquet is removed what is likely to occur | Hematoma |
| When should the tourniquet be removed | While the first tube is filling |
| What is the term for a collection of blood under the skin at the site of a venipuncture | Hematoma |
| How should bleeding be stopped at a venipuncture site | Remove the needle and apply pressure to gauze over the site |
| When should a tube collection be labeled | At the patient’s bedside after taking the blood |
| Which of the following steps should be taken with a syringe before using it to collect blood | Pull the plunger back to break the seal then expel all the air |
| Which of the following is the next step after removing your gloves | Wash hands |
| When using a syringe how do you tell when you have entered a vein | A flash of blood will appear in the syringe hub |
| How should blood be transferred from a syringe to a vacuum tube | Remove the needle and attach a needless transfer device to the syringe |
| What is the abbreviation for the form that indicates a service may be covered and requires a signature by Medicare patients | ABN |
| Advance benefitciary Notice of non coverage may be required for what patient | Medicare |
| What is true in the event that Medicare rejects a reimbursement claim and an ABN was not signed by the patient | The institution can bill the patient |
| Which of the following is preferred collection site for laboratory testing of patient at high risk for venous thrombosis | Routine venipuncture of median cubital vein |
| What is the preferred method of blood collection in newborns and infants | Dermal puncture |
| Which of the following tests cannot be collected using a dermal puncture | Blood cultures |
| Which of the following has higher levels in capillary blood that in venous blood | Glucose |
| Which of the following has higher levels in venous blood than in capillary blood | Calcium |
| How long should a heel warmer be applied to an infants heels | 3-5 minutes |
| Puncture of a bone during dermal puncture can result in what potentially serious and sometimes fatal bone infection | Osteochondritis |
| Which of the following is the appropriate site for dermal puncture on an infants foot | Medial and lateral borders of plantar surface |
| Which of the following is an appropriate dermal puncture site for adults | Middle finger perpendicular to the ridges |
| Betadine may elevate results of which tests if used to clean the skin for a dermal puncture | Bilirubin,Uris acid,phosphorus,potassium |
| Which of the following is an acceptable step during collection of blood by dermal puncture | Wipe away the first drop of the blood with a dry,clean gauze pad |
| When performing a venipuncture, to what pressure should the blood pressure cuff be inflated | 40 mm Hg*only |
| What is another name for a dermal puncture | Capillary stick |
| Drawing excessive amounts of blood from a patient puts them at risk for what type anemia | Iatrogenic |
| For which of the following cases would a capillary puncture be contraindicated | Severely dehydrated patients |
| For which of the following patients would a capillary puncture be preferred | A patient with compromised lymphatic drainage |
| The emergency department has requested that blood alcohol level be drawn on a patient. What is the proper way to obtain the specimen | Clean the site with betadine(povidone-iodine) and preform a routine venipuncture |
| What is the medical term for fainting | Syncope |
| What condition can be caused by removal of lymphoid tissue as part of mastectomy | Lymphostasis |
| When you are unable to locate a vein after thoroughly examining a patients arm, what step should be taken next | Examine the other arm for a vein |
| A patient has a seizure while you are preforming a venipuncture what should you do | Remove the tourniquet and needle immediately and call the nurse for help |
| When collecting blood from vein in the back of the hand, where should the tourniquet be placed | Just above the wrist |
| Which of the following tests is the most seriously affected by hemolysis | Glucose |
| Which of the following can cause hemolysis of a blood specimen | Using a small gauge needle and a large vacuum tube |
| During a prolonged hospitalization a patient requiring many laboratory tests may develop what condition as a result of multiple blood samples being drawn | Edema |
| Which of the following may cause a hematoma | Going through the back side of the vein when inserting the needle |
| Collections for which department require a special patient identification identification system in addition to the hospital ID bracelet | Blood bank |
| A large amount of bleeding into tissue surrounding a puncture site (in a patient who takes anticoagulant medication) can cause what condition | Vein collapse |
| What is the the maximum amount of the time that a tourniquet can be left on | 1 min |
| What is the term used to describe a vein that is hardened due to repeated venipunctures, chemotherapy or disease | Sclerosed |
| If the ante cubital space is inaccessible when venipuncture is required, what is the next best site for specimen collection | Dorsal veins |
| Which of the following veins should be avoided to reduced chances of nerve damage | Basilic |
| All of the following are reasons for specimen rejection except for what | Collection from the wrong vein |
| Which mode of transmission involves contaminated food,drugs, or blood transfusions | Contact |
| What is the first action to take to help a victim in shock | Control any bleeding |
| The most common cause of contamination in blood cultures is which of the following | Improper site preparation |
| A phlebotomy tech should identify that which of the following is the first step in the blood collection procedure | Test requisition |
Created by:
Koolkat9418