Investigations are taking place at Perth College after allegations that a curriculum mix-up led to students failing a course.
The college is among several in Scotland facing a demand for answers from politicians, including MSP Roseanna Cunningham.
Students doing access to nursing courses are understood to have been taught the wrong curriculum, leading to problems at exams.
A meeting between the Perth MSP and college chiefs is set to take place today in a bid to clarify the situation.
Ms Cunningham said she would be looking for answers to some “very searching” questions.
As the college said the teaching offered had matched guidance provided by the SQA, the MSP revealed that students at a number of colleges may have been given exam questions unrelated to what they were being taught.
She said, “Two Highers were being taught in at least three colleges as part of an Access to Nursing Biology and Mental Health Care. My understanding is there was no issue with the biology course and that the problem relates solely to the mental health care higher.
“As soon as I heard of this situation, I got in touch with Perth College and the SQA to establish the facts and what is being done to resolve the matter. I also contacted my colleague, the education secretary.”
She said her priority was to protect the interests of students, rather than establish who was at fault.
“Being taught the wrong curriculum would obviously mean students were examined on aspects of the subject they had not been taught and would explain why many students who might reasonably have expected a good pass were in fact given a failing grade.
“The impact of this on these students’ hopes of continuing their studies at university is obvious and I want to see this sorted out as soon as possible.”
A Perth College spokeswoman said an investigation was taking place, covering internal processes and communication with the SQA in relation to the teaching of the Higher in mental health care.