(a) Use of Depositions. At the trial or upon the hearing of a motion or an interlocutory proceeding, any part or all of a deposition, so far as admissible under the rules of evidence applied as though the witness were then present and testifying, may be used against any party who was present or represented at the taking of the deposition or who had reasonable notice thereof, in accordance with any of the following provisions:
(1) Impeachment. Any deposition may be used by any party for the purpose of contradicting or impeaching the testimony of the deponent as a witness.
(2) Party or Agent. The deposition of a party or of any one who at the time of taking the deposition was an officer, director, or managing agent of a public or private corporation, partnership, or association which is a party may be used by an adverse party for any purpose.
(3) Unavailable Witness. The deposition of a witness, whether or not a party, may be used by any party for any purpose if the court finds:
(i) that the witness is dead; or
(ii) that the witness is out of the county, unless it appears that the absence of the witness was procured by the party offering the deposition; or
(iii) that the witness is unable to attend or testify because of age, sickness, infirmity, or imprisonment; or
(iv) that the party offering the deposition has been unable to procure the attendance of the witness by subpoena; or
(v) that the witness is a physician or surgeon, or that the witness is an expert witness, even though the witness is available.