There was no cards tagged for this QID its not a difficult Q (so the answer was clear to me and 72% of other test takers) but with that said I couldnt find anywhere where it discussed sarcomeres being added in parrallel to cause concentric hypertophy.
this QID shows a heart image with obvious concentric R ventricular hypertrophy and asked what describes these changes.
A: High rate of myosin mRNA synthesis (explanation explains increase in sacomeres means an increase in synthysis of its components)
FA pg315 (supports UW)
Also added FA Reference. (Copied from other card)
Reworded first point in the extra bc it was previously moved from the sketchy field but was worded weird in reference to the text field
Source: UWorld - Step 1 6447 (UWSA1)