A common cause of peripheral neuropathy is:

Which factors contribute to maintaining a patent ductus arteriosus during fetal life? 1. Large amounts of fetal hemoglobin 2. Low PaO2 3. Presence of LDH 4. Presence of prostaglandins

a. 1, 2, and 3 b. 2 and 4 c. 3 only d. 1, 2, 3, and 4

It is most appropriate to use an answering machine:

A) only when all lines are busy B) anytime the office is closed C) during the office lunch break D) when you are too busy with other work to answer the phone