oneul byeongwoneseo geomsareul batgo jibeseo swieoyo.

-고 is a connector meaning and, and then, or after doing in a simple sequence.

So:

• 검사를 받고 = get/have a medical test and then...
• 집에서 쉬어요 = rest at home

In this sentence, 받고 links the first action to the second one:

• 오늘 병원에서 검사를 받고 집에서 쉬어요.
• Today, I get/have a medical test at the hospital and rest at home.

It usually sounds like the actions happen in that order: first the test, then resting.

Because only the final verb in the sentence is fully conjugated for politeness and tense.

Here:

• 받다 → 받고 when it connects to another verb
• 쉬다 → 쉬어요 as the final verb

So Korean often works like this:

• A-고 B-어요
• do A and do B

If you said 검사를 받아요 집에서 쉬어요, it would sound like two separate sentences or be unnatural without a clear connector.

에서 is used for the place where an action happens.

In this sentence:

• 병원에서 = at the hospital
• 집에서 = at home

Both places are locations where actions occur:

• the test happens at the hospital
• the resting happens at home

That is why 에서 is correct.

A common learner question is: why not 에?

• 에 is often used for destination or existence
• 에서 is used for where an action takes place

So:

• 병원에 가요 = I go to the hospital
• 병원에서 검사를 받아요 = I get a test at the hospital

Because 검사 is the object of the verb 받다.

• 검사 = examination, test, checkup
• 를 = object marker

So:

• 검사를 받다 = to receive / undergo a test or examination

This is a very common Korean pattern:

• 수업을 받다 = take a class
• 치료를 받다 = receive treatment
• 검사를 받다 = undergo a test / examination

Even though English might say have a test or get examined, Korean often uses 받다 with a noun plus 를.

The basic meaning of 받다 is to receive.

But in medical contexts, it often means:

• to undergo
• to get
• to receive

So 검사를 받다 is literally something like receive an examination, but in natural English it usually means:

• get a test
• have an examination
• undergo an examination

This is a good example of how Korean and English package actions differently.

Yes, 검사받다 is also used, especially in real-life Korean.

So you may see both:

• 검사를 받다
• 검사받다

Both mean to undergo a test/examination.

Very roughly:

• 검사를 받다 feels like the noun 검사 plus the verb 받다
• 검사받다 feels more like a single combined verb

For a learner, 검사를 받다 is often easier to understand because the object marker 를 makes the structure clear.

오늘 means today, and time words in Korean often come near the beginning of the sentence.

A very common order is:

• time + place + object + verb

So here:

• 오늘 = today
• 병원에서 = at the hospital
• 검사를 받고 = get a test and
• 집에서 쉬어요 = rest at home

This word order is very natural in Korean.

You could move 오늘 for emphasis in some contexts, but putting it first is the most straightforward and common choice.

In Korean, the present tense often covers:

• habitual actions
• current actions
• near-future plans

So 쉬어요 can mean:

• I rest
• I’m resting
• I will rest

The time expression 오늘 helps make the meaning clear. In context, this sentence can easily mean a plan for today:

• Today, I’m getting a test at the hospital and resting at home.

This is very normal in Korean.

Yes, the subject is omitted.

Korean often leaves out the subject when it is obvious from context. So this sentence does not explicitly say 저는 or 제가, but it is understood as something like:

• (저는) 오늘 병원에서 검사를 받고 집에서 쉬어요.

This is one of the most common features of Korean. If the speaker is talking about their own schedule, I is easy to infer, so Korean usually does not repeat it.

Usually it suggests a simple sequence:

1. get the examination at the hospital
2. rest at home

So the natural reading is first A, then B.

However, -고 is a fairly broad connector and can sometimes just list actions. If you want to emphasize after doing A, Korean often uses forms like:

• 검사를 받고 나서 집에서 쉬어요.
• After getting the test, I rest at home.

Your original sentence is perfectly natural, but -고 나서 makes the sequence more explicit.

The dictionary form is 쉬다 = to rest.

To make the polite present form:

• 쉬다 → remove 다 → 쉬
• add -어요
• result: 쉬어요

So:

• 쉬어요 = rest / am resting / will rest in polite style

This is the standard polite ending used in everyday conversation.

To some extent, yes. Korean word order is flexible, but the verb must come at the end of its clause, and the most neutral order is still the easiest for learners.

The original sentence is very natural:

• 오늘 병원에서 검사를 받고 집에서 쉬어요.

You could sometimes move pieces around for emphasis, but not every rearrangement sounds equally natural.

For example, adding the subject is fine:

• 저는 오늘 병원에서 검사를 받고 집에서 쉬어요.

But for learners, it is best to keep the common pattern:

• time + place + object + verb
• then the next clause ending with the final verb

That will usually sound the most natural.