The first stage of labor is characterized by:

a. dilation of the cervix.
b. expulsion of the infant.
c. delivery of the placenta.
d. crowning at opening of birth canal.

a

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History of a contact dermatitis following exposure to latex is a contraindication to the receipt of some vaccines.

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CPT recognizes _____ types of presenting problems

a. two b. three c. four d. five

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