Dokter memantau tekanan darah Kakek.

Indonesian usually does not use articles like the, a, or an.

So dokter can mean:

• a doctor
• the doctor
• sometimes just doctor in a general sense

The exact meaning comes from context. In this sentence, English often translates it as The doctor monitors Grandpa’s blood pressure, but Indonesian does not need a separate word for the.

Memantau is the verb form built from the root pantau.

• pantau = monitor / observe
• meN- + pantau → memantau = to monitor

The meN- prefix is very common in Indonesian and often marks an active verb, especially in standard written language.

So:

• Dokter memantau ... = The doctor monitors ...

You may sometimes hear the bare root in casual speech, but memantau is the normal standard form here.

Literally:

• tekanan = pressure
• darah = blood

So tekanan darah literally means blood pressure.

This is a normal Indonesian noun phrase, with the main noun first:

• tekanan darah = pressure of blood = blood pressure

In Indonesian, possessors usually come after the thing possessed.

So:

• tekanan darah Kakek = Grandpa’s blood pressure
• literally: blood pressure of Grandpa

This is different from English, which often puts the possessor first:

• Grandpa’s blood pressure

A similar pattern:

• buku saya = my book
• literally: book my

Kakek means grandfather / grandpa, but it can also function like a name or title when referring to a specific person in the family.

So:

• kakek = grandfather / an old man / grandpa in a general sense
• Kakek = Grandpa, used almost like a proper name

In this sentence, capitalization suggests it means Grandpa as a family title for a specific person.

Because of the context and capitalization, it most likely means Grandpa / Grandfather.

The word kakek can also mean old man in other contexts, but in:

• tekanan darah Kakek

the natural reading is Grandpa’s blood pressure, not the old man’s blood pressure.

Context is very important in Indonesian.

The sentence follows the common Indonesian word order:

• Subject + Verb + Object

So:

• Dokter = subject
• memantau = verb
• tekanan darah Kakek = object

That gives:

• The doctor
  • monitors
    • Grandpa’s blood pressure

If the meaning were reversed, the sentence would need to be arranged differently.

Not exactly. Indonesian verbs do not usually change form for tense the way English verbs do.

So memantau itself does not specifically mean:

• monitors
• is monitoring
• monitored
• will monitor

Tense is usually understood from context or from time words such as:

• sekarang = now
• kemarin = yesterday
• besok = tomorrow
• sedang = currently / in the middle of

Without extra context, English often translates this sentence as a simple present:

• The doctor monitors Grandpa’s blood pressure or
• The doctor is monitoring Grandpa’s blood pressure

Not exactly.

The most natural and simple way is:

• tekanan darah Kakek = Grandpa’s blood pressure

Other forms exist, but they are different in tone or structure:

• tekanan darah milik Kakek = the blood pressure belonging to Grandpa
  
  • grammatical, but more explicit and less natural in an ordinary sentence
• tekanan darahnya Kakek
  
  • possible in some contexts or speech styles, but not the plainest standard choice here

So for a basic possession pattern, noun + possessor is the key structure to learn:

• tekanan darah Kakek

Yes. That would mean A doctor monitors Grandpa’s blood pressure.

• dokter by itself = doctor / a doctor / the doctor, depending on context
• seorang dokter = a doctor, more explicitly

Adding seorang makes the noun more clearly indefinite in English terms.

No.

• tekanan darah = blood pressure
• tekanan darah tinggi = high blood pressure

But darah tinggi by itself is not the standard full expression for high blood pressure. In everyday speech, people may shorten things, but the proper phrase is:

• tekanan darah tinggi

So in your sentence, tekanan darah is the full noun phrase meaning blood pressure.

You could add sedang:

• Dokter sedang memantau tekanan darah Kakek.

This means:

• The doctor is monitoring Grandpa’s blood pressure right now.

So:

• memantau = monitor(s)
• sedang memantau = is monitoring

Yes, it is natural and correct.

It uses very standard Indonesian structure:

• Dokter = subject
• memantau = active verb
• tekanan darah Kakek = object with a possession structure

A very natural English translation would be:

• The doctor is monitoring Grandpa’s blood pressure. or
• The doctor monitors Grandpa’s blood pressure.

Both fit well, depending on context.