De uitslag verklaart mijn hoge bloeddruk.

Here, uitslag means result or test result.

This word is a bit tricky because it has several meanings in Dutch, including:

• result / outcome
• election result
• rash (on the skin)

In this sentence, the context determines the meaning. With verklaart mijn hoge bloeddruk, the most natural reading is the result explains my high blood pressure, probably a medical test result.

Because uitslag is a de-word in Dutch, so its definite article is de.

You simply have to learn noun gender/article as part of the word:

• de uitslag = the result

Even though English just uses the, Dutch nouns are divided into de-words and het-words.

Verklaart is the present tense, third-person singular form of verklaren.

Conjugation:

• ik verklaar = I explain
• jij verklaart = you explain
• hij/zij/het verklaart = he/she/it explains

The subject here is de uitslag, which is singular, so Dutch uses verklaart.

In this sentence, verklaren means something like:

• to explain
• to account for
• to provide the reason for

So De uitslag verklaart mijn hoge bloeddruk means the result gives an explanation for why the speaker has high blood pressure.

This is slightly broader than plain English explain, because in medical or scientific contexts Dutch verklaren often means to account for a condition or symptom.

Because in Dutch, adjectives before a noun usually take an -e ending.

Here:

• hoog = high
• hoge bloeddruk = high blood pressure

That -e is very common when an adjective comes before a noun, especially after words like mijn, de, dit, die, etc.

So:

• mijn hoge bloeddruk = my high blood pressure

Because mijn already functions like a determiner, so you do not also add de or het.

Compare:

• de bloeddruk = the blood pressure
• mijn bloeddruk = my blood pressure

You cannot normally say:

• mijn de bloeddruk ✘

So in mijn hoge bloeddruk, the possessive mijn replaces the article.

Yes. Bloeddruk is a compound noun:

• bloed = blood
• druk = pressure

Dutch very often writes these combinations as one word, whereas English often uses two words.

So:

• Dutch: bloeddruk
• English: blood pressure

This is extremely common in Dutch, so learners should get used to compound nouns being written together.

Because this is a simple main clause with the subject first, so Dutch uses normal subject–verb–object order:

• De uitslag = subject
• verklaart = verb
• mijn hoge bloeddruk = object

So the structure is:

• De uitslag verklaart mijn hoge bloeddruk.
• The result explains my high blood pressure.

Dutch often differs from English in word order, but in a straightforward main clause like this, they can look very similar.

Yes. Hoge bloeddruk is the normal everyday Dutch expression for high blood pressure, and in many contexts it corresponds to hypertension.

So depending on context, the phrase may sound:

• more everyday: high blood pressure
• more medical: hypertension

Dutch speakers commonly use hoge bloeddruk in both ordinary and medical contexts.

A rough pronunciation guide is:

• uitslag ≈ OUT-slahkh

A few notes:

• ui is a difficult Dutch vowel sound that does not exist exactly in English.
• slag begins with sl- as in English slip
• the final g is the Dutch guttural sound, not a hard English g

A rough full-sentence pronunciation might be:

• duh OWT-slahkh vuh-RKLAHRT main HOH-ghuh BLOOT-drakh

That is only approximate, but it may help as a first step.

Potentially yes, if the sentence is shown without context.

As mentioned earlier, uitslag can also mean:

• rash
• outcome/result
• election result

So a learner might hesitate at first. But once you see verklaart mijn hoge bloeddruk, the medical/test-result meaning becomes much more likely than rash.

That kind of ambiguity is normal in Dutch, just as in English many words have multiple meanings that are resolved by context.