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Learn Hardcore Japanese: kidou wo kakuninsuru. - I check the airway.

Hardcore Japanese
/Taking a first-aid course
/kidou o kakuninsuru.

kidou o kakuninsuru.

Word

気道きどう　を　確認かくにんする。kidou o kakuninsuru.

Meaning

I check the airway.

Part of speech

sentence

Pronunciation

Course

Hardcore Japanese

Lesson

Taking a first-aid course

Breakdown of kidou o kakuninsuru.

direct object particle

確認かくにんするkakuninsuru

気道きどうkidou

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Questions & Answers about kidou o kakuninsuru.

How do you read 気道を確認する?

It is read:

きどうをかくにんする

気道（きどう） = airway
を = object marker
確認する（かくにんする） = to check, confirm, verify

So the full sentence is きどうをかくにんする.

What does 気道 mean exactly?

気道 means airway.

In medical Japanese, it refers to the passage through which air moves during breathing. In first-aid or emergency contexts, checking the 気道 means making sure the person’s airway is open and not blocked.

Why is を used here?

を marks the direct object of the verb.

In this sentence:

気道 = the thing being checked
確認する = to check/confirm

So 気道を確認する literally means to check the airway.

A very literal breakdown is:

気道 = airway
を = object marker
確認する = check/confirm

What does 確認する mean, and how is it different from just 見る?

Nihon-shiki romanizationwatasi ha tyuugoku kara kimasita

Hepburn romanizationwatashi wa chuugoku kara kimashita

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確認する means to confirm, to verify, or to check carefully.

It is more formal and deliberate than 見る, which simply means to see or to look.

Compare:

気道を見る = look at the airway
気道を確認する = check/confirm the airway

In a medical or procedural context, 確認する is much more natural because it implies making sure something is in the proper condition.

Why does the sentence end with する? Is this plain form?

Yes. 確認する is the plain/dictionary form.

This form is commonly used in:

manuals
instructions
procedural steps
note-taking
headings
neutral descriptions of actions

So 気道を確認する。 sounds like an instruction step such as Check the airway.

If you wanted to make it polite, you could say:

気道を確認します。

Why is there no subject like I, you, or the nurse?

Japanese often omits the subject when it is obvious from context.

So 気道を確認する。 does not explicitly say who is checking the airway. Depending on context, it could mean:

Check the airway.
I check the airway.
We check the airway.
The responder checks the airway.

In instructional or medical contexts, the omitted subject is often understood as the person performing the procedure.

Is this sentence a command?

Not directly in grammar, but it can function like an instruction.

Grammatically, 確認する is just the plain dictionary form, not the direct command form. However, in manuals and step-by-step instructions, the dictionary form often works like an instruction:

気道を確認する。 = Check the airway.

A stronger direct command would be:

気道を確認しろ。
気道を確認してください。 (polite request)

So the original sentence is best understood as a neutral procedural instruction, not a harsh command.

Why is there a space between the words here? Does Japanese normally use spaces?

Normally, Japanese is written without spaces.

So the usual writing would be:

気道を確認する。

Spaces are often added only for learners, textbooks, or clarity. They help beginners see the parts of the sentence more easily, but they are not standard in ordinary Japanese writing.

Is 確認する a noun + する verb?

Yes.

確認 is a noun meaning confirmation/check, and when combined with する, it becomes a verb:

確認 = confirmation
確認する = to confirm / to check

This is very common in Japanese. Other examples:

勉強する = to study
説明する = to explain
連絡する = to contact

So 確認する is a very typical suru-verb.

In what kind of situation would someone say 気道を確認する?

This phrase is especially common in:

first aid
emergency response
CPR instructions
medical training
hospital or nursing procedures

For example, when following an emergency checklist, one step might be:

気道を確認する。
呼吸を確認する。
脈を確認する。

So it sounds like a step in a professional or instructional sequence.

Could 気道を確認してください be more natural in conversation?

Yes, in many real-life situations it would.

Compare:

気道を確認する。
Neutral, manual-like, instructional, checklist style
気道を確認してください。
Polite request: Please check the airway.
気道を確認します。
Polite statement: I will check the airway / We check the airway

So the original sentence is natural if it is being used as a procedure step or written instruction. In direct spoken conversation, a polite form is often more natural.

Can 確認する mean both check and confirm?

Yes. The exact English translation depends on context.

In many situations, 確認する can mean:

check
confirm
verify
make sure

In this sentence, check the airway is the most natural English translation. But the Japanese nuance includes the idea of making sure the airway is in the proper state. So it is a little more careful and purposeful than simply look at the airway.

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