Which of the following factors does not directly influence oxygen delivery to tissues?
AType of fluid administered
BCardiac output
COxygen saturation
DHemoglobin concentration
Which are the segments of the upper lobe of the right lung?
ALateral, medial, superior
BApical, anterior, posterior
CBasal, medial, lateral
DAnterior, posterior, medial
Which of the following structures is NOT innervated by the phrenic nerve?
ADiaphragm
BMediastinal pleura
CSerratus anterior
DPericardium
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