Pakistan Cricket Board (PCB) spokesman Sami-ul-Hassan said from Karachi that Akhtar along with wicketkeeper Moin Khan and all-rounder Abdul Razzaq would appear before the Commission in Lahore to undergo tests at the National Cricket Academy.
He said all the three cricketers would undergo the tests prescribed by the four-member medical inquiry commission, which consisted of medical specialists.
Akhtar had informed the PCB that he would not be in a position to appear before the commission before April 26 due to personal engagements in India.
Besides Akhtar, Razzaq and Moin, PCB had directed pacemen Shabbir Ahmed and Umar Gul to appear before the commission to get their injuries verified.
Of the five, Ahmed has already left for England to play in County matches and is reported to have submitted his medical records before the commission. Gul, the hero of the second Test at Lahore which Pakistan won by nine wickets, had appeared before the commission on Sunday.
Meanwhile, local daily The News quoted Pakistan Cricket Board officials as saying that it has been decided to conduct a bone scan on Akhtar to determine his claims of back injury which kept him off the field in the series-deciding third Test in Rawalpindi.
The report said PCB officials had their doubts after an MRI test, on Akhtar along with other fast bowlers, during the match failed to provide evidence of any injury.
It quoted medical specialists as saying that no medical test could reveal a muscle problem, if it was not serious. It all depended on the honesty of the players.
The newspaper also said that Gul was carrying an injury even before he was selected to play the second Test and it aggravated due to long bowling spells at the nets and in the match. Gul was dropped for the crucial third Test due to injury.