Final answer:
The two forms of consent that can be obtained from an employee are written consent, which involves a signed formal document, and implied consent, which is assumed from actions or context.
Step-by-step explanation:
The two forms of consent that can be obtained from an employee are written consent and implied consent. Written consent involves a formal agreement that is documented and signed, such as in the case of signing an informed consent form for participation in a research study or when signing an employment contract that outlines the terms and conditions of employment. Implied consent, on the other hand, is not explicitly provided but rather assumed from an individual's actions or the context of a situation. For example, continuing to work under certain conditions without objection may be seen as implied consent to those conditions.