Sudan black is used to distinguish which types of leukemia?
a. Acute myeloid leukemia from acute lymphoblastic leukemia
b. Acute myeloid leukemia from chronic myelogenous leukemia
c. Acute myeloid leukemia from acute promyelocytic leukemia
d. Acute promyelocytic leukemia from acute myelomonocytic leukemia
ANS: A
Lymphoid cells are generally negative, whereas myeloblasts are positive. Thus a positive result with this stain can be used to differentiate acute myeloid leukemia from acute lymphoblastic leukemia. The entire myeloid series through neutrophils is positive, so it is not useful in differentiating different types of acute myeloid leukemia. Monocytes are negative to weakly positive.
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When initially applied, the SpO2 and the arterial oxygen saturation (SaO2), as well as the pulse on the pulse oximeter, ECG, and manual pulse, were consistent. During clinical rounds, the respira-tory therapist notices that although the probe is appropriately placed and capillary refill is normal, the SpO2 reading is down to 90% from 95%. The most appropriate immediate action is to do which of the following? a. Replace the probe. b. Reposition the patient. c. Draw an arterial blood gas. d. Move the probe to a different site.
One of the most common problems for firefighters on emergency medical responses is ____.
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