Zdravstvena knjižica je spremna.

Because zdravstvena is an adjective agreeing with knjižica, which is a feminine singular noun.

In Croatian, adjectives change their form to match the noun’s:

• gender
• number
• case

Here:

• knjižica = feminine, singular, nominative
• so the adjective must also be feminine singular nominative: zdravstvena

Compare:

• zdravstvena knjižica = health booklet/card
• zdravstveni karton = health record file
  because karton is masculine
• zdravstveno osiguranje = health insurance
  because osiguranje is neuter

For the same reason: spremna agrees with the subject knjižica.

The adjective spreman / spremna / spremno means ready, and it changes depending on gender:

• spreman = masculine
• spremna = feminine
• spremno = neuter

Since knjižica is feminine, the correct form is:

• Knjižica je spremna. = The booklet/card is ready.

It is in the nominative singular, because it is the subject of the sentence.

The structure is:

• Zdravstvena knjižica = the subject
• je = is
• spremna = ready

So the sentence literally works like:

• [The health booklet/card] [is] [ready].

Both zdravstvena and knjižica are nominative singular.

Literally, knjižica means little book or booklet. It is a diminutive form related to knjiga (book).

In real-life Croatian usage, zdravstvena knjižica refers to an official health-insurance document. Depending on context, English might translate it as:

• health booklet
• health insurance booklet
• health card
• medical insurance card

So yes, the literal meaning is booklet, but the practical meaning is often closer to health insurance document/card.

No. Zdravstvena means health-related or medical.

That is an important distinction:

• zdrav = healthy
• zdravstven = related to health / medical

So:

• zdrav čovjek = a healthy person
• zdravstvena knjižica = a health/medical booklet or card

It does not mean that the booklet itself is healthy.

Je is the 3rd person singular present form of the verb biti (to be).

So:

• ja sam = I am
• ti si = you are
• on/ona/ono je = he/she/it is

In this sentence:

• Zdravstvena knjižica je spremna.
• literally: The health booklet is ready.

In normal standard Croatian, no. You normally need je in this kind of sentence.

So:

• Zdravstvena knjižica je spremna. = correct

Without je:

• Zdravstvena knjižica spremna. = not normal standard Croatian

You might see omission in:

• headlines
• notes
• very informal fragments

But in a regular full sentence, keep je.

Yes, Croatian word order is more flexible than English word order, but the given sentence is the most neutral and natural one.

Neutral order:

• Zdravstvena knjižica je spremna.

You could also hear:

• Spremna je zdravstvena knjižica.

That version is more marked and can sound more emphatic or context-dependent, as if focusing on ready or contrasting it with something else.

For learners, the safest basic pattern is:

• subject + je + adjective

Because Croatian does not have articles like English a/an/the.

So:

• knjižica can mean a booklet, the booklet, or just booklet
• the exact meaning depends on context

In this sentence, English usually says:

• The health booklet/card is ready.

But Croatian simply says:

• Zdravstvena knjižica je spremna.

Usually ready.

• spreman / spremna / spremno = ready
• gotov / gotova / gotovo = finished, done, completed

So:

• Zdravstvena knjižica je spremna. = The health booklet/card is ready.

This often implies:

• ready to be picked up
• ready to use
• ready for collection

If you said gotova, that would stress completion more directly:

• Zdravstvena knjižica je gotova. = The health booklet/card is finished.

Both can work in some contexts, but spremna is very natural for something prepared and available.

Mostly yes. In Croatian, nouns ending in -a are very often feminine.

So:

• knjižica is feminine
• that is why the agreeing adjectives are:
  • zdravstvena
  • spremna

This is a very useful beginner rule, although there are some exceptions in Croatian overall. For knjižica, feminine is straightforward.

A rough English-style pronunciation is:

ZDRAHV-stveh-na KNYEE-zhee-tsa yeh SPREM-na

A few helpful notes:

• zdravstvena: the cluster at the start is heavy; say zdrav-
• knj in knjižica is tricky for English speakers; it is roughly like kny
• ž sounds like the s in measure
• c in Croatian sounds like ts
• je here sounds like yeh

So:

• knjižica ≈ KNYEE-zhee-tsa

Yes, but it can depend on country, region, and administrative system.

Historically, zdravstvena knjižica was a very common official term for a health insurance booklet/document. In some modern contexts, people may also refer to:

• a card
• an insurance document
• digital records instead of a physical booklet

So even if the physical format changes, the phrase itself is very recognizable and useful to know.

No, not as written. The subject is clearly zdravstvena knjižica, which is an object: a health booklet/card.

The adjective spremna is feminine, and feminine forms can describe either:

• feminine nouns
• female people

But here the noun is explicitly present, so the meaning is definitely:

• The health booklet/card is ready.

If you only had Spremna je, then depending on context it could mean:

• She is ready or
• It is ready for a feminine noun understood from context.