If you have a latex allergy, or you are concerned the patient you might be dealing with has a latex allergy then Nitrile is the way to go.  Nitrile is made of synthetic rubber.  You can wear these disposable gloves for longer periods and they will hold up.  They even tend to be more difficult to puncture then latex.  A Derma-Lite box of 100 nitrile gloves is on sale for only $9 plus shipping.