Don't use jargon or specialized language that your reader might not understand.
If you have to use a specialized term, explain briefly what it means, in parentheses. For example: "Patients have the right to make decisions about their bodily integrity (autonomy) and to have access to unbiased and accurate information about relevant medical issues and treatments."
The above quote is from the College of Physicians and Surgeons of British Columbia's Professional Standards and Guidelines: Medical Assistance in Dying, a good example of a document for a professional audience that is written in plain language.
Telehealth technology will help doctors build capacity to provide . . .
Telecommunications technology will help doctors provide . . .
Flush your central venous catheter twice a week with saline or heparin to keep it patent.
Flush your central venous catheter twice a week with saline or heparin to keep it clear of obstructions.
We would like to ensure that we are prepared to implement the necessary steps required to control an outbreak of an infectious disease that represents a risk to patients, employees and others associated with our clinics.
We want to make sure that we are ready to control an outbreak of an infectious disease in our clinics.
Likewise, don't use acronyms unless they are well known, for example, HIV/AIDS, EEG. If you do want to use both the acronym and term, use the spelled-out word first, followed by the acronym in brackets, for example, EEG (electroencephalogram).