Discuss the pathogenesis and consequences of hypertensive heart disease, including the progression from compensated hypertrophy to heart failure.

A 31-year-old pregnant woman presents with hypertension. (a) Which other laboratory investigation would have reflected the condition of the patient? (b) What does the D-dimer test signify? (c) What is the integral component of the D-dimer? (d) Name the condition more likely to be associated with this presentation. (e) Name the pharmacological management approach for this patient.