To fix the sentence, you can make a few changes:
"The patient, who resides in a nursing home, suffered a broken hip when the nursing home toppled over."
Explanation:
1. Commas are used to provide nonessential information or additional details. In this case, the phrase "who resides in a nursing home" is providing additional information about the patient, so it should be set apart with commas.
2. Instead of using "which," we can use "when" to indicate the timing of events more clearly.
3. Instead of saying "resulting in," we can use a more direct phrase like "suffered a broken hip" to better convey the cause and effect relationship.
Remember, effective sentence structure and clarity are crucial for effective communication.