What are the key monitoring parameters for patients starting antihypertensive therapy?

Guideline-aligned answer with reasoning, red flags and references. Clinically reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP.

Posted: 14 August 2025Updated: 14 August 2025 Guideline-Aligned (High Confidence) Clinically Reviewed
Dr Kola Tytler MBBS CertHE MBA MRCGPClinical Lead • iatroX

Key monitoring parameters for patients initiating antihypertensive therapy include:

  • Regular measurement of blood pressure using clinic measurements, aiming for targets below 140/90 mmHg for adults under 80 years and below 150/90 mmHg for those 80 and over, with clinical judgement for frailty or multimorbidity. Home or ambulatory blood pressure monitoring (HBPM/ABPM) can be used, with targets 5 mmHg lower than clinic measurements (135/85 mmHg for under 80, 145/85 mmHg for 80 and over) ,.
  • Assessment of renal function by measuring serum creatinine, electrolytes, and estimated glomerular filtration rate (eGFR) .
  • Testing urine for albumin:creatinine ratio (ACR) to detect proteinuria .
  • Measurement of blood potassium levels, especially important when using certain antihypertensives like ACE inhibitors or ARBs .
  • Screening for other cardiovascular risk factors including glycated haemoglobin (HbA1c), total cholesterol, and HDL cholesterol .
  • Examination of the fundi for hypertensive retinopathy .
  • Performing a 12-lead electrocardiograph (ECG) to assess cardiac status .
  • Monitoring for symptoms and signs of postural hypotension by measuring blood pressure both seated and standing, especially in older adults or those with symptoms ,.
  • Providing an annual review to discuss lifestyle, symptoms, medication adherence, and to monitor blood pressure and side effects ,.

Related Knowledge Topics

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Monitoring Parameters for Patients Starting Antihypertensive Therapy: