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*Identify the indicated structure (in RED (include right or left).  

*Identify the indicated LAYER at the ARROW.  

*A patient has an SpO2 value of  95%. Is this value considered adequate or not? Yes or No

*Identify the indicated structure in BLUE  (include right or left).

*What is the normal percentage range of this type of blood cell (as described in our differential WBC count activity)?  

*Identify the indicated structure in BLUE  (include right or left).

*A patient has an SpO2 of 90%. Is this level adequate? Yes or No

*Identify the indicated RED structure at the arrow (be specific).   

*Identify the indicated structure at the ARROW (the hole)  

*Identify the indicated structure in BLUE at the arrow (include right or left).