Exam 8: Invasive Blood Gas Analysis and Monitoring

In addition to applying direct pressure to the puncture site immediately after the arterial puncture procedure,what can the therapist do to minimize the risk of hematoma formation in a patient who requires frequent radial arterial punctures?

Which of the following pulmonary artery catheter waveforms represents the catheter's normal location? A. B. C. D.

A 3-kg neonate has lost 30% of his circulating blood volume.Approximately how much fluid should be infused to compensate for this loss?

Which of the following factors would adversely affect the correlation between arterial puncture measurements and those from a capillary sample?

Which of the following factors influence the central venous pressure (CVP)measurement? I.Bicuspid valve function II.Right ventricular pressure III.Intravascular volume IV.Systemic venous return

A patient has a systolic blood pressure of 100 mm Hg and a diastolic pressure of 75 mm Hg.What is this patient's mean arterial pressure?

On the basis of the position of the three-way stopcock shown here,identify which of the following activities related to arterial line blood sampling is occurring.

Calculate a patient's total arterial oxygen content given the following data: •Arterial oxygen tension (PaO₂),100 mm Hg •Arterial carbon dioxide tension (PacO₂),45 mm Hg •Arterial oxygen saturation (SaO₂),97.5% •Hemoglobin concentration ([Hb]),15 g/dL •Cardiac output,4.5 L/minute •Stroke volume,55 mL/beat

Which of the following conditions can cause methemoglobinemia?

A respiratory therapist has been ordered to obtain a blood gas sample from a nonintubated premature baby.After selecting the best site to obtain the sample,what should the RT suggest to ameliorate the pain associated with the procedure?

Which of the following arteries is considered the optimal puncture site for obtaining arterial blood samples from neonatal and pediatric patients?

If a blood gas sample is not obtained from an arterial stick in a premature baby without central access,which of the following sites should be considered because this blood vessel is larger than the radial artery at this age?

On the basis of the following waveform,in which of the following anatomic locations is the distal tip of the pulmonary artery catheter located?

In addition to the dorsalis pedis,which of the following arteries is involved when the modified Allen's test is performed using a foot as the potential arterial puncture site?

The neonatal intensive care unit (NICU)respiratory therapy supervisor is observing a therapist obtain an arterial blood sample from an infant's radial artery and notices that the therapist has the bevel of the needle pointed upward,entering the patient's skin at a 45-degree angle and in a direction against the arterial flow.What should the supervisor do at this time?

Which of the following is one of the most common arrhythmias observed as a complication from the insertion of a pulmonary artery catheter?

On the basis of the following waveform,in which of the following anatomic locations is the distal tip of the pulmonary artery catheter located?

With an umbilical artery catheter (UAC)in the "low position," which of the following blood vessels should be avoided?

A 12-hour-old infant is experiencing respiratory distress,and the neonatologist orders a heel stick to assess the infant's oxygenation status.What action should the therapist take at this time?

On the basis of the following waveform,in which of the following anatomic locations is the distal tip of the pulmonary artery catheter located?