Question

280 Unit IV Special Procedures Chapter Review Questions 1. Which of the following personnel may be required to performantevial puncture! EM c. Phlebotomists M d. All of the above 9. Which of the following is an acceptable range of needle gauges for arterial puncture a. 16 to 21 c. 2010 25 b. Isto 23 d. 25 to 28 2. O, saturation measures the: a. alkalinity of the blood plasma b. amount of Oxy en dissolved in the plasma C. Oxygen pressure in the lungs, d. percent of Oxygen bound to hemoglobin. 10. In performing radial artery puncture, the needle should enter the skin: a. at the exact point where the pulse is felt h. distal to where the pulse is felt. c. Lateral to where the pulse is felt. d. proximal to where the pulse is felt. 3. Which is the first choice artery for ABG collection: Brachial Radial b. Femoral d. Ulnar 11. Normally, when the needle enters the artery a. a flash of blood appears in the syringe b. the syringe plunger starts to vibrate. c. you may hear a soft swishing sound. d. all of the above can happen, 4. Which of the following is the most important crite rion for selecting an artery for ABG collection pro vided that there is no other reason to avoid the site! a. Collateral circulation b. Depth of the artery c. Dominance of the arm d. Strength of the pulse 12. An ABG specimen is most likely to be rejected if it: a. arrives at the laboratory 20 minutes after collec- tion. b. contains only around 2 ml of blood. c. is collected in a glass syringe. d. is determined to be ONS. 5. The anticoagulant used in ABG specimen collection is: a EDTA e potassium balate. b. heparin. d. sodium citrate, 6. In addition to identification information, which of the following is typically documented before ABG specimen collection? a. FIO, or 1./ M c . Room temperature b. History of smoking d. All of the above 13. Which of the following is the best way to tell that the specimen you are collecting is in fact arterial blood a. A flash of blood appeared in the syringe on needle entry. b. Blood pulsed into the syringe under its own power. c. The color of the blood is bright cherry.red. d. There is no way to tell for certain. 7. A phlebotomist must collect an ABG specimen when the patient is breathing room air. The patient has just been taken off the ventilator when the phlebotomist arrives. When can the phlebotomist draw the ABG specimen? a. After 1 hour c. In 5 to 10 minutes b. Immediately d. In 20 to 30 minutes 14. A single routine arterial specimen for both ABG and electrolyte testing should be transported: a. at room temperature. Con ice. b. green-top tube. d. STAT. 15. The risk of hematoma associated with arterial puncture is greatest if: a. a large-diameter needle is used. b. the patient is elderly. c. the patient is on a blood thinner. d. all of the above. 8. A phlebotomist has a request to collect an ABG specimen on a patient. The patient has a positive Allen test on the right arm. What should the phle- botomist do! a Collect the specimen by capillary puncture. b. Collect the specimen from the right radial artery. c Collect the specimen from the right ulnar artery. d. Perform the Allen test on the left arm.

Answer 1

1, d, All of the above
Phelebotomist is a certified professional for artial puncture and to collect the blood specimen for analysis. medical technologist(MT) and emergency medical technologist (EMT) also trained professionals for collecting blood samples and also they will assist phlebotomists in an arterial puncture in case of any emergency.
2, d, Percent of oxygen bound to hemoglobin
Oxygen saturation measures the o2 delivery function of hemoglobin,
The alkalinity of the blood plasma measure by PH
Oxygen pressure in the lungs measured by Po2
Amount of oxygen dissolved in the plasma measured by pao2
3, c, radial
this is the most common artery located in the thumb side of the wrist can be used for the first choice aretery for blood sampling.
Brachial and femoral arteries have disadvantages like less superficial, poor collateral circulation it can damage the surrounding structure if it is handled by the false method.
4, a, Collateral circulation
It is recommended that the presence of good collateral flow makes the blood supply to the hand more viable. poor collateral circulation, depth of the artery, the dominance of the arm and sterth of the pulse can damage the artery can cause hematoma...