Match the urine abnormality with its likely cause:

HbE is a hemoglobin variant commonly seen in the Asian population.

What is the purpose of EDTA in evacuated blood tubes?

Pipetting by mouth is allowed in emergency situations.

Which of the following is a vascular complication of venipuncture?

What does an icteric specimen indicate?

Which hemoglobin variant is associated with sickle cell anemia?

Waived tests are highly complex and require strict regulations.

What should be done with an unlabeled reagent container?

A patient with advanced chronic obstructive pulmonary disease is admitted to the ICU.  The patient is placed on 24% air entrainment mask and has a pulmonary artery catheter inserted.   PVR  720 dynes PaO2  57 torr The physician orders an increase to 28% oxygen via air-entrainment mask, after the increase in O2, PVR 400 dynes PaO2 72 torr What would you recommend?