Ako ne dobiješ uputnicu danas, nazovi me čim izađeš iz ordinacije.

In Croatian, after conjunctions like ako (if) and čim (as soon as), it is very common to use the present form to talk about a future situation.

So:

• Ako ne dobiješ uputnicu danas... = If you don’t get the referral today...
• čim izađeš iz ordinacije = as soon as you leave the office

This is normal Croatian grammar. English often uses present forms in similar clauses too:

• If you don’t get it today, call me
• As soon as you leave, call me

Also, both dobiješ and izađeš are from perfective verbs, so their present forms often refer to a single completed future event in contexts like this.

Nazovi is the imperative form of the verb nazvati (to call).

Here it means:

• nazovi = call

More specifically, it is the 2nd person singular imperative, so it is used when speaking to one person informally:

• Nazovi me. = Call me.

Related forms:

• nazovi = call! (to one person, informal)
• nazovite = call! (to more than one person, or polite/formal)

Me is a clitic pronoun in Croatian. Clitics usually do not stand at the very beginning of a clause, and they tend to come in the second position area of the sentence.

So the natural order is:

• Nazovi me = Call me

Putting me first would sound wrong in normal standard Croatian.

This kind of placement is very common with short pronouns:

• Daj mi to. = Give me that.
• Reci mu. = Tell him.

Uputnicu is in the accusative singular.

The basic noun is:

• uputnica = referral / referral slip

Here it is the direct object of the verb dobiti (to get / receive), so accusative is used:

• dobiti uputnicu = to get a referral

Masculine and neuter nouns often look the same in nominative and accusative, but feminine nouns ending in -a usually change:

• nominative: uputnica
• accusative: uputnicu

Good question, because learners sometimes hear that negation can affect the object case.

In modern Croatian, with verbs like dobiti, the direct object is very often still in the accusative, even in negative sentences:

• Ne dobiješ uputnicu.

That is the most natural choice here.

You may sometimes encounter genitive under negation in certain styles or expressions, but in everyday Croatian, accusative is very common and normal in sentences like this.

Ako means if, so it introduces a condition:

• Ako ne dobiješ uputnicu danas... = If you don’t get the referral today...

This means maybe you will get it, maybe you won’t.

Kad usually means when. It suggests the event is expected rather than conditional.

So in this sentence, ako is the correct choice because the speaker is talking about a possible situation, not a certain one.

Čim means as soon as.

It emphasizes that one action should happen immediately after another:

• nazovi me čim izađeš iz ordinacije
• call me as soon as you leave the office

If you used kad, the meaning would be more general:

• kad izađeš = when you leave / when you come out

So čim is stronger and more precise: it signals immediacy.

The preposition iz means out of / from, and it requires the genitive case.

The noun is:

• ordinacija = doctor’s office / medical office / consulting room

Its genitive singular is:

• ordinacije

So:

• iz ordinacije = out of the office

This is a fixed pattern:

• iz kuće = out of the house
• iz škole = out of the school
• iz auta = out of the car

Izađeš comes from the verb izaći, which means to go out, to come out, or to leave depending on context.

Here:

• izađeš iz ordinacije = you leave the office / you come out of the office

It is a perfective verb, which is why it fits well with the idea of one completed action:

• first you leave the office
• then you call

All of these forms are for 2nd person singular informal (you, talking to one person casually):

• dobiješ = you get
• nazovi = call!
• izađeš = you leave

This tells you the speaker is talking directly to one person in an informal way.

If the speaker were addressing someone formally or more than one person, the forms would change, for example:

• Ako ne dobijete uputnicu danas, nazovite me čim izađete iz ordinacije.

Danas means today, and Croatian word order is fairly flexible, so its position can move depending on emphasis.

The given sentence:

• Ako ne dobiješ uputnicu danas, nazovi me čim izađeš iz ordinacije.

is natural and neutral.

You could also hear:

• Ako danas ne dobiješ uputnicu...

That version puts slightly more focus on today.

So yes, danas is somewhat flexible, but the original placement is completely normal.

Because the sentence is about single, completed actions, Croatian naturally prefers perfective verbs here.

• dobiti = to receive / get once, successfully
• nazvati = to call once
• izaći = to go out / leave once

This fits the meaning:

1. maybe you get the referral
2. you leave the office
3. you call me

If imperfective verbs were used instead, the meaning would often sound more ongoing, repeated, or less event-focused.

So the perfective choices make the sentence sound precise and goal-oriented.

Uputnica is a medical/administrative word. It usually means a referral or referral slip/document, especially one that lets a patient go to a specialist, hospital, or another medical service.

So in this sentence it most likely means that the person may or may not receive the necessary medical referral paperwork that day.