Final answer:
The three guidelines for building and spelling medical words are: using the correct word parts, following rules for combining parts, and being mindful of spelling conventions.
Step-by-step explanation:
The three guidelines that help with the building and spelling of medical words are:
- Use the correct prefix, root, and suffix to define the meaning and context of the word. For example, in the word 'antibiotic', the prefix 'anti-' means 'against', the root 'biot' means 'life', and the suffix '-ic' means 'pertaining to'. This gives the word the meaning of 'against life'.
- Follow the rules of combining word parts, such as dropping or changing letters to make the word parts fit together better. For example, in the word 'electrocardiogram', the combining form 'electro-' is used instead of 'electric-', which is the standalone word, to make the word parts flow better together.
- Be mindful of spelling conventions and rules, such as silent letters and vowel pronunciation. For example, in the word 'pneumonia', the 'p' is silent and the 'ae' is pronounced as a long 'e' sound.