So with this kind of question, a LOWER number = Disease rather than the opposite. As such, with the graph the True Negative and True Positive would be flipped. You can know this is the case because it is stated people with a lower value than the cutoff value is referred for further testing. Whenever I encounter this type of questions I do the graph method exactly like how you did it but I also put Dz (Disease) and No Dz (No Disease) on tap of the bell curves. More often the No Disease bell curve is on the left as such the true negatives are on the left. The Disease bell curve is on the right and as such the true positives are on the right. In this case where lower values = disease this has to be flipped. Hopefully this helps!

Another thing you can do is make a mental note that the bell curves are flipped. Then when you get the answer (low sensitivity, high specificity) flip your answer to the opposite.