na dłoni in inglese:

We had no bandages at hand with which to bind the wound.

There's always someone at hand to help

It's never at hand when I need it.

We ​want to ​ensure that ​help is at hand for all ​children ​suffering ​abuse.

The matter at hand is most complicated.

I'll do it for you at hand.

I always have a pen at hand in case I need to take notes.