A patient has a tumor blocking the left mainstem bronchus. What additional factor would favor the development of atelectasis?
a. Breathing a nitric oxide mix (iNO)
b. Breathing a helium/oxygen mix (heliox)
c. Breathing a high percentage of oxygen
d. Breathing a low percentage of oxygen
C
Alveolar degassing can occur if the patient has inhaled a high oxygen percentage and the bronchus is then blocked. When all of the oxygen is absorbed from the alveoli, they will develop atelectasis.
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A(n) ________ treats disorders and diseases characterized by inflammation of the joints, such as arthritis
a. rheumatologist b. psychiatrist c. pathologist d. otorhinolaryngologist
Patients with pseudogout typically present with which of the following?
A) Calcium oxalate crystals that are rhomboid-, rod-, or rectangular-shaped and negatively birefringent with positive elongation (blue when aligned with the compensator axis). B) Cholesterol crystals that are plate-like in appearance and weakly positive birefringent. C) Calcium pyrophosphate dehydrate (CPPD) crystals that are rhomboid-, rod-, or rectangular-shaped and weakly positive birefringent with positive elongation (blue when aligned with the compensator axis). D) Sodium urate crystals that are octagonal in shape and strongly positive birefringent with positive elongation.