byeongwoneseo maseukeureul sseugo che-onbuteo hwaginhaesseo.

에서 marks the place where an action happens. So 병원에서 means at the hospital in the sense of in/at that location, the actions took place there.

This is different from 병원에, which usually points more to destination or location/existence, such as:

• 병원에 갔어 = I went to the hospital.
• 병원에 있어 = I’m at the hospital.

But in your sentence, the speaker is describing actions done there, so 에서 is the natural choice.

In Korean, 쓰다 is the normal verb for wearing certain things on the head or face, including:

• 모자를 쓰다 = wear a hat
• 안경을 쓰다 = wear glasses
• 마스크를 쓰다 = wear/put on a mask

This can feel strange to English speakers because 쓰다 has several meanings, such as:

• to write
• to use
• to wear certain items

Korean uses different verbs depending on what you wear:

• 입다 for clothes
• 신다 for shoes
• 끼다 for rings/gloves/glasses in some contexts
• 쓰다 for hats, masks, etc.

So 마스크를 쓰다 is completely normal.

It can suggest either, depending on context.

The form -고 simply connects actions:

• 마스크를 쓰고 체온부터 확인했어

This can be understood as:

1. put on a mask and then checked the temperature first, or
2. wearing a mask, checked the temperature first

In everyday Korean, this kind of sentence often leaves that distinction unstated because the general flow is clear enough from context.

If someone wanted to make put on first, then especially clear, they might say something more explicit. But your sentence is natural as it is.

-고 connects verbs, similar to and in English.

Here:

• 쓰고 = wearing/putting on and
• 확인했어 = checked

So the sentence links two actions:

1. wearing/putting on a mask
2. checking the temperature first

A useful point: -고 often suggests actions happening in sequence, but it does not always strongly emphasize time order. It mainly joins the actions smoothly.

부터 is a particle meaning from or, in this kind of sentence, first / starting with.

When 부터 is attached to a noun, you normally do not add 을/를 before it:

• 체온부터 확인했어 = checked the temperature first / started by checking the temperature

So 체온을부터 is not natural.

In many cases, particles like 부터, 만, 도, 까지 attach directly to the noun and replace the basic object marker in the surface form.

Here, 부터 means something like first or starting with.

So 체온부터 확인했어 gives the feeling of:

• I checked the temperature first
• I started by checking the temperature

This is close to 체온을 먼저 확인했어, but the nuance is slightly different:

• 먼저 = simply first
• 부터 = starting with, often implying there may be more steps after that

So 체온부터 확인했어 can sound a little more like temperature was the first item in the process.

확인했어 is in the casual/informal polite-neutral style often called 반말 when used with someone close to you.

It comes from:

• 확인하다 = to check/confirm
• past tense: 확인했어 = checked / confirmed

More formal versions would be:

• 확인했어요 = polite
• 확인했습니다 = formal

So the sentence as written sounds like something you would say to:

• a friend
• someone younger
• someone you are close to
• in a diary or casual narration

It is omitted, which is very common in Korean.

병원에서 마스크를 쓰고 체온부터 확인했어 does not explicitly say I, we, they, etc. Korean often leaves out the subject when it is obvious from context.

Depending on context, it could mean:

• I wore a mask and checked my temperature first
• we did that
• they did that

In real conversation, listeners usually understand the subject from the situation.

Yes, Korean word order is flexible, though some versions sound more natural depending on emphasis.

Your sentence is natural:

• 병원에서 마스크를 쓰고 체온부터 확인했어

It presents:

1. place
2. first action
3. next action

You could also rearrange parts for emphasis, such as putting the place elsewhere, but Korean usually keeps the verb at the end and places descriptive elements before it.

What matters most is:

• 병원에서 marks where
• 마스크를 쓰고 connects the first action
• 체온부터 shows what was done first in the procedure
• 확인했어 finishes the sentence

So the sentence order is both natural and easy to process.

Yes, 확인하다 is very natural here. It means to check or to confirm.

With 체온, common expressions include:

• 체온을 재다 = to measure one’s temperature
• 체온을 확인하다 = to check/confirm temperature

The nuance is slightly different:

• 재다 focuses more on the act of measuring
• 확인하다 focuses more on checking the result/status

In a hospital or screening context, 체온부터 확인했어 sounds very natural because it fits the idea of a procedure or screening step.