Indicate whether the following represents quantitative or qualitative variables:
Gender of a patient

Which component of a N2O-O2 delivery system reduces gas pressures from tanks before delivery into tubing and pipes?

A) Regulator B) Manifold C) Pin index safety system D) Flow meter

Which action best illustrates an EMT upholding a high ethical standard?

A) Administering oxygen to patients who are short of breath B) Providing care that goes beyond the scope of practice C) Treating alcoholics and drug addicts with respect D) Informing other health care providers of patients in the community with AIDS