Prevalent practice in medicine today is often to forgo them as unnecessary.
The prevalent way to represent plurals for medical acronyms and initialisms is simply to affix a lowercase s (no apostrophe).
Arrows may be used to indicate numerous conditions including elevation (↑), diminution (↓), and causation (→, ←).
Abbreviations of weights and measures are pronounced using the expansion of the unit (mg = "milligram") and chemical symbols using the chemical expansion (NaCl = "sodium chloride").
Signs and symptomsSyndromeDisease Medical diagnosisDifferential diagnosisPrognosis AcuteChronicCure Eponymous diseaseAcronym or abbreviationRemission