A nurse is preparing to apply a pulse oximeter to a child who is having an acute asthma attack. Select the areas the nurse can correctly place the pulse oximeter. (Select All that Apply.)

A. Foot: Suitable for infants or younger children, especially in cases of limited upper extremity access. B. Forearm: Not a typical placement site for pulse oximetry due to lack of adequate perfusion. C. Earlobe: Often used when peripheral sites are unreliable, especially in cases of poor circulation. D. Fingertip: The most common site for older children or adults. E. Toe: Frequently used in infants or small children. F. Cheek: Not a standard site for pulse oximeter placement.