checking grammar

Review of the sleep questionnaire indicates that the patient had a trend oximetry done 2 years ago and was placed on 9 cm of CPAP. The patient notes that he has not seen much change with the use of it. His father has a history of the same. He still continues to have daytime fatigue and sleepiness and some shortness of breath. There is also a history of seizure disorder diagnosed in the fall of 1997.

...He still continues to have daytime fatigue, sleepiness and some...

just separate with a comma

the rest I fine :)

Commas needed:

He still continues to have daytime fatigue, sleepiness, and some shortness of breath. There is also a history of seizure disorder, diagnosed in the fall of 1997.

Here's a good source for basic comma uses you need to know:
http://grammar.ccc.commnet.edu/grammar/commas.htm

To check the grammar in the given text, you can follow these steps:

1. Read the sentence carefully to identify any grammatical errors.
2. Look for subject-verb agreement errors. Ensure that the subject and verb agree in number and tense.
3. Check for punctuation errors, such as missing commas, periods, or incorrect use of quotation marks.
4. Review the use of pronouns to ensure they agree in number and gender with their antecedents.
5. Pay attention to the verb tenses and make sure they are consistent throughout the text.
6. Check for any misspelled words or incorrect word usage.

After reviewing the given text, I have identified a few suggestions for improvement:

"Review of the sleep questionnaire indicates that the patient had a trend oximetry test done 2 years ago and was placed on 9 cm of CPAP. The patient notes that he has not seen much change with its use. His father has a history of the same. He still continues to experience daytime fatigue, sleepiness, and some shortness of breath. There is also a history of seizure disorder diagnosed in the fall of 1997."

Please note that these are suggestions, and you can modify the text according to your specific context and style.