Before giving thrombolytics, which blood pressure threshold must be met?

Before giving thrombolytics, which blood pressure threshold must be met?

• A. less than 140/90
• B. less than 150/95
• C. less than 160/95
• D. less than 185/110

Answer: (D)

Before giving thrombolytics, the blood pressure must be below 185/110 mmHg. This threshold is set because thrombolytics greatly increase the risk of intracerebral hemorrhage, and keeping BP under this limit helps minimize that risk. If the pressure is higher, clinicians use IV antihypertensives such as labetalol, nicardipine, or clevidipine to bring it down to or below 185/110 before administering the medication. Once thrombolysis is started, the goal is to maintain BP below about 180/105 for the next 24 hours to further reduce the risk of bleeding. Lower thresholds would unnecessarily delay treatment, while higher thresholds would raise the risk of hemorrhagic complications.

Before giving thrombolytics, the blood pressure must be below 185/110 mmHg. This threshold is set because thrombolytics greatly increase the risk of intracerebral hemorrhage, and keeping BP under this limit helps minimize that risk. If the pressure is higher, clinicians use IV antihypertensives such as labetalol, nicardipine, or clevidipine to bring it down to or below 185/110 before administering the medication. Once thrombolysis is started, the goal is to maintain BP below about 180/105 for the next 24 hours to further reduce the risk of bleeding. Lower thresholds would unnecessarily delay treatment, while higher thresholds would raise the risk of hemorrhagic complications.