Identify the simple subject and simple predicate in each.

The elderly patient's deep venous thrombosis was treated with Coumadin.
Answer:
1. simple subject-
patient's

2. simple predicate
was treated
? is the answers more than one word?

A main verb (simple predicate) can have more than one word, yes.

You've got the simple predicate right, but not the subject. Ask yourself: Who or what "was treated..."?

In my lessons it explains - find the simple predicate first.

'was treated'
yes ask yourself the question
Who or What was treated-

ANSWER: venous thrombosis
I believe you can leave out the word deep - ? that would be an adjective describing the above?

Right.

Are there other types of thrombosis? If there are, then keep venous. If not, then venous is an adjective, too.

I Googles thrombosis -

found that besides venous thrombosis there is also deep vein thrombosis-

Answer: keep the word venous
simple subject: venous thrombosis

OK, good. =)

The simple subject is the main noun or pronoun that performs the action of the sentence or is being described. In this case, the simple subject is "patient's," referring to the patient belonging to someone.

The simple predicate is the main verb or verb phrase that expresses the action or state of being of the subject. In this case, the simple predicate is "was treated," which shows that something was done to the patient's condition.

To identify the simple subject and simple predicate, break down the sentence:

The elderly patient's deep venous thrombosis was treated with Coumadin.

1. Subject: The elderly patient's
- Identifying the possessive noun phrase "patient's" as the simple subject.

2. Predicate: was treated with Coumadin
- The verb phrase "was treated" functioning as the simple predicate.

Please note that the simple predicate can consist of more than one word, like in this case where "was treated" is the verb phrase functioning as a single predicate.