Chapter 14 Arterial Puncture Procedures
Arteriospasm is defined as:
Artery contraction resulting from pain, irritation by the needle or anxiety
steady state means that the patient has
Had no suction or respirator changes
what can cause erroneous ABG values
The presence of air bubbles in the specimen, delay in analysis exceeding 30 minutes, and inadequate mixing results in microclots.
Sudden fainting during arterial puncture is all of the following EXCEPT
related to hypoglycemia
the first choice location for performing arterial puncture is the
radial artery
the preferred and most common site for arterial puncture is the:
radial artery
the most common needle size for routine radial ABG specimen collection is
22 gauge
acceptable angle of needle insertion for radial ABGs
45 degrees
which of the following is an acceptable angle of needle insertion for drawing radial arterial blood gases
45 degrees
the proper angle of needle insertion for drawing femoral arterial blood gas is :
90 degrees
heparin is used in arterial sample collection to:
prevent clotting of the specimen
the following is NOT a blood gas component
PO4
Positioning of the arm for radial arterial blood gas specimen collection includes all of the following EXCEPT:
arm adducted
which of the following is the most common arterial puncture complication even when proper procedure is used
arteriospasm
complications associated with arterial puncture
arteriospasm, hematoma, infection
arterial puncture site selection is based on all of the following EXCEPT:
available equipment in the room
the blood gas parameter HCO3 measures the amount of:
bicarbonate circulating in the blood
the purpose of the modified Allen test is to determine
collateral circulation is present
which of the following is the best way to tell if a specimen is arterial? as the specimen is collected, the blood will:
pump into the collection syringe
the primary reason for performing arterial puncture is to
evaluate blood gases
which artery is generally easiest to access during low cardiac output
femoral
the biggest advantage of choosing the radial artery for arterial blood gas collection is:
good collateral circulation is present
what constitutes a positive modified Allen test, the
hand color returns to normal in 15 seconds
the thumb should not be used to feel for the artery because it:
has a pulse
ABG supplies include
heparinized syringes, 22 gauge needle,
all of the following can affect the integrity of a blood gas sample EXCEPT:
increased vagus nerve activity
a proper cleaning solution for preparing an arterial puncture site is
isopropyl alcohol
what should the phlebotomist do if the pulse is absent or faint following arterial blood collection
notify the patient's nurse or lab supervisor
ABG parameters include
pH,PaCO2, O2 saturation
which of the following would cause you to suspect that a thrombus had formed in the artery while you were collecting an ABG
the pulse distal to the site is very weak
the radial artery is located in the :
thumb side of wrist
when performing the modified Allen test, which artery is released first
ulnar
all of the following would cause an arterial blood gas specimen to be rejected EXCEPT:
unavoidable delay in collection
patient complications associated with arterial puncture include all of the following EXCEPT:
venostasis
