ANSWER: DEVELOPMENT OF ANESTHESIA AND ACCEPTANCE OF THE GERM THEORY.
EXPLANATION:
The nursing instructor should emphasize on the development of anesthesia and the germ theory.
Anaesthesia refers to the practice of administering drugs or medications (either by injection or by inhalation), which deter the feeling of pain and other sensations, or by eliminating all sensations through initiating a deep state of unconsciousness in individuals, which in turn allows surgical and medical procedures to be carried out without discomfort or undue stress.
Overtime, the existence of anesthesia have greatly aid maternal care by allowing women to have the chance of managing pains during birth.
In the other hand, the Germ theory (also regarded as pathogenic theory of medicine) states that certain microscopic organisms are responsible for the outbreak of certain diseases.
However, the Germ theory led to the development of antibiotics to tackle microscopic organisms causing diseases and also have improve hygienic practices in maternal care. Hence, brings about decrease in infections during labor.