(Solved): 1. What are the three different indwelling catheters and what do they measure? 2. A Respiratory The ...

1. What are the three different indwelling catheters and what do they measure? 2. A Respiratory Therapist is called to obtain an arterial sample on a COPD patient who is very lethargic on \( 3 \mathrm{~L} \) nasal cannula. The patient is not cyanotic and has the following previous blood gases from 4 hours earliet: \[ \mathrm{pH} 7,37 \mathrm{PCO} 250 \mathrm{PaO} 278 \mathrm{HCO}-29 . \] The RT obtains the arterial sample from the patient's right radial artery with no issues. The doctor rushes in and orders the \( R T \) to run the ABG as soon as possible. The respiratory therapist immediately caps the syringe and notes air bubbles in the sample. The RT disregards their findinys and takes the sample for analysis and receives the following valuest: \[ \mathrm{pH} 7.25 \text { PCO2 } 28 \mathrm{PaO} 2100 \mathrm{HCO} 3-34 \] Atter reading the results to the doctor, he is certain this blood gat is not pocurate. Explain what caused the pormmeters to ileviate out of ringe: What should have been done ditterently to avoid this situation? 3. Why should the site of a capillacy blood gas be warmed betore drawing the sample?