itself during the term of the contract – and was the very reason of his repatriation. Respondent submits that Lutero died of a heart ailment which he incurred during the term of the contract, thus, making his death compensable. Respondent also denies that the heart ailment of Lutero was a preexisting illness because, while it is true that the PEME is not exploratory, the ailment would have been easily detected because Lutero had been continuously under petitioners' employ for almost four years. Lastly, respondent highlights her claim that Lutero, after his repatriation, immediately reported to Interorient and asked for post-medical examination and assistance, but none was given to him. She bewails the fact that, instead of the conduct of said examination, petitioners induced Lutero to execute the Acknowledgment and Undertaking, releasing petitioners from any liability.22[22] The ultimate issue in this case is whether the CA committed a reversible error in rendering the assailed Decision.   The Petition is bereft of merit.   As a rule, only questions of law may be raised in and resolved by this Court on petitions brought under Rule 45 of the Rules of Civil Procedure, because the Court, not being a trier of facts, is not duty-bound to reexamine and calibrate the evidence on record. In exceptional cases, however, we may delve into and resolve factual issues when there is insufficient or insubstantial evidence to support the findings of the tribunal or court below, or when too much is concluded, inferred or deduced from the bare or incomplete facts submitted by the parties, or when the 22[22] Comment; rollo, pp. 97-140.