De huisarts verwees haar door na het overgeven.

Because the full verb is doorverwijzen, which is a separable verb in Dutch.

• Infinitive: doorverwijzen = to refer someone onward / to send someone on to a specialist
• Past tense in a main clause: verwees ... door

So:

• De huisarts verwees haar door. = The GP referred her onward.

This splitting is very common with separable verbs in Dutch:

• opbellen → Ik bel je op.
• meenemen → Zij nam hem mee.
• doorverwijzen → De huisarts verwees haar door.

In a medical context, doorverwijzen usually means to refer someone to another doctor, specialist, or service.

So De huisarts verwees haar door suggests that the GP did not treat the issue entirely themselves, but sent her on to someone else, such as:

• a specialist
• the hospital
• another department

The word door adds the idea of onward or further along.

Huisarts means general practitioner, family doctor, or GP.

It is made up of:

• huis = house
• arts = doctor

But you should learn huisarts as one word with the specific meaning GP, not as a literal house doctor in normal English.

Because haar is the object form, while zij/ze is the subject form.

In this sentence:

• De huisarts = the subject, the one doing the action
• haar = the object, the person being referred

Compare:

• Zij verwees haar door. = She referred her onward.

So:

• zij / ze = she
• haar = her

Verwees is the simple past of verwijzen.

Forms:

• infinitive: verwijzen
• present: verwijst
• past singular: verwees
• past plural: verwezen
• past participle: verwezen

In this sentence, verwees means referred.

Here, na means after, and het overgeven means the vomiting or vomiting.

So na het overgeven means:

• after vomiting
• after she had vomited

Dutch often uses het + infinitive to turn a verb into a noun-like expression.

Examples:

• het eten = eating / the eating
• het slapen = sleeping
• het overgeven = vomiting

So this is a very natural Dutch structure.

No. Overgeven can have different meanings depending on context.

Common meanings include:

• to vomit
• to hand over
• to surrender

In this sentence, because it is about a huisarts and a medical situation, het overgeven clearly means vomiting.

This is a good example of why context matters a lot in Dutch vocabulary.

Because Dutch can use an infinitive as a noun, and in that case it often takes het.

So:

• overgeven = to vomit
• het overgeven = vomiting / the act of vomiting

This is similar to English eating, sleeping, or vomiting when used as nouns, but Dutch often marks this with het.

More examples:

• Het roken is verboden. = Smoking is forbidden.
• Het lezen kost tijd. = Reading takes time.

Because haar is the direct object and normally comes before the separated particle door.

With separable verbs in a main clause, the usual pattern is:

• finite verb earlier in the sentence
• object(s) in the middle
• separable particle near the end

So:

• De huisarts verwees haar door.

This is the normal and natural word order.

Yes. Both are possible, but they are structured differently.

• na het overgeven = after vomiting
• nadat ze had overgegeven = after she had vomited

The version with na het overgeven is more compact and slightly more neutral or formal in style.

The version with nadat ze had overgegeven is more explicit because it clearly states who vomited.

In normal interpretation, yes, that is what most people will assume.

The sentence is:

• De huisarts verwees haar door na het overgeven.

The most natural reading is that she vomited, and after that the GP referred her onward.

However, grammatically, na het overgeven does not explicitly name the person doing the vomiting. If you want to make it fully explicit, you could say:

• Nadat zij had overgegeven, verwees de huisarts haar door.

That removes any possible ambiguity.

That is understandable, but not the most natural English.

A more natural translation would usually be:

• The GP referred her after she vomited.
• The GP referred her to a specialist after she vomited.
• The GP referred her onward after vomiting.

The exact English wording depends on how much of the medical context you want to make explicit.