Hun fik også en hævelse ved anklen, så vi tog på skadestuen.

Fik is the past tense of få.

In this sentence, få means something like get or develop:

• Hun fik en hævelse = She got/developed a swelling

This is a very common use of få in Danish. It does not only mean receive. It can also mean:

• get an illness
• get an injury
• get a problem

So fik is the natural choice here.

This is because of normal Danish main-clause word order.

In a simple main clause, the finite verb usually comes early, and adverbs like også often come after it:

• Hun fik også en hævelse

That placement is very natural in Danish.

Compare:

• Hun fik også en hævelse = neutral, natural
• Også hun fik en hævelse = more marked, meaning something like she too got a swelling

So here også is in the normal position for also.

Because hævelse is a countable noun here, and Danish normally uses an article with singular count nouns.

• en hævelse = a swelling

You would not usually say just hun fik hævelse in normal Danish.

Also, hævelse is a common gender noun, so it takes en in the singular indefinite form:

• en hævelse
• definite: hævelsen

Hævelse means swelling or a swelling.

It comes from the idea of something becoming swollen. In medical or everyday injury contexts, it is a very normal word.

Related forms:

• at hæve = to raise, lift
• at hæve sig / hævet in other contexts can relate to rising or swelling
• en hævelse = a swelling

In this sentence, it refers to a physical swelling caused by an injury.

Ved anklen means by the ankle, near the ankle, or around the ankle.

It is a slightly broad, natural way to describe the location.

The choices give slightly different nuances:

• ved anklen = near/around the ankle area
• på anklen = on the ankle, often more on the surface
• i anklen = in the ankle, more like inside the joint or the ankle itself

So ved anklen works well when the speaker is describing where the swelling appeared without being extremely precise.

Danish often uses the definite form for body parts when it is already obvious whose body part is meant.

So:

• ved anklen = by the ankle
• not necessarily ved hendes ankel

This is very common in Danish. English often prefers a possessive:

• She hurt her arm But Danish may say:
• Hun slog armen

The context already makes it clear that it is her ankle, so Danish does not need to say hendes.

The basic noun is en ankel = an ankle.

Its definite singular form is:

• anklen = the ankle

So:

• indefinite: en ankel
• definite: anklen

This is a regular pattern for many common-gender nouns:

• en bil → bilen
• en arm → armen
• en ankel → anklen

Here så means so in the sense of therefore / as a result.

It connects the two clauses:

• Hun fik også en hævelse ved anklen
• så vi tog på skadestuen

So the meaning is:

• she got a swelling near the ankle,
• so we went to the emergency room

This så is a coordinating conjunction, not the adverb meaning then.

Because så here introduces another full main clause as a coordinating conjunction.

So the clause keeps normal main-clause order:

• så vi tog på skadestuen

If a word is placed first in a clause as an adverbial, then Danish often has inversion:

• Så tog vi på skadestuen = Then/so we went to the ER

But that is a slightly different structure. In your sentence, så is linking two clauses, so vi tog is the natural order.

Literally, tog is the past tense of tage, which usually means take. But in many expressions, tage can mean go.

So:

• vi tog på skadestuen = we went to the emergency room

The expression tage på is idiomatic in Danish when talking about going to certain places or institutions.

You will often hear similar patterns like:

• tage på arbejde = go to work
• tage på hospitalet = go to the hospital

So this is not a word-for-word take on meaning. It is just a natural Danish way to say go to in this context.

The definite form skadestuen is natural because the speaker means the emergency room / casualty department as the relevant medical place to go.

In Danish, institutions and places with a clear function are often referred to in the definite form:

• på hospitalet
• på skolen
• på skadestuen

So på skadestuen means something like to the ER or to the emergency department.

Using the indefinite form here would sound much less natural, because the point is not some emergency room somewhere, but the proper place you go when there is an injury.

Because there are two clauses here, and Danish normally uses a comma to separate them:

• Hun fik også en hævelse ved anklen,
• så vi tog på skadestuen.

The comma helps show that the second clause is connected to the first as a result.

Danish comma rules can be stricter than English learners expect, so seeing a comma before a linking word like så is very normal.