Emergency/urgent Hypertension Flashcards
Hypertensive urgency SBP and DBP parameters
SBP greater than 220mm Hg
DBP greater than 125 mm Hg
Other than BP parameters what can be indicative of hypertensive urgency
May or may not have optic disk Edema
No signs of end organ damage
In HTN urgency when must the BP must be reduced
Within Few hours
Hypertensive emergency BP
Strikingly elevated DBP greater than 130mm Hg
What are the signs of End organ damage
Encephalopathy Intracranial hemorrhage Ischemic stroke Nephropathy Unstable angina, AMI, CHF, or aortic dissection Pulmonary edema
In emergency HTN BP must me reduced within how many hours and at what percentage
1-2 hrs
25% ( <160/110 in 24 hours )
Main goal of the PE in HTN emergency
Is to evaluate for signs of end organ damage
During the neurological examination what are some findings in HTN emergency
Neurological deficits Mental status changes Changes in vision HA N/V
Cardio/pulmonary exam looking for?
Signs of heart failure ( S3, new murmurs)
Carotid bruits
Pulmonary edema
Sudden c/o SOB chest px
In fundoscopic examination looking for?
Papilledema or hemorrhage
Labs
UA ( proteininuria or hematuria)
Comprehensive metabolic panel ( renal or liver dysfunction)
Troponins( myocardial injury)
Images/studies
EKG ( signs of AMI)
Chest xray ( widened mediastinum ( aortic dissection) or pulmonary edema
CT head or aorta ( if indicated)
Treatment for urgency
If already on meds, re-initiate it
If not on meds, use oral alpha blocker or beta blockers
Oral alpha blocker give
Clonidine
Beta blocker
Metoprolol or labetalol
Emergency HTN treatment
IV
O2 ( if <94%) monitor with telemetry
after lower BP by 25%, start to slowly reduce BP
Start with Labetalol 20mg IV ( over 10 minutes) than 40-80mg IV q10 min PRN, max 300mg
For emergency, once stable switch to which medication?
Metoprolol 25-50 mg PO twice daily
What can occur if the BP is lowered to quickly in an emergency HTN
May precipitate renal, cerebral or coronary ischemia
Initial treatment
Look for signs of End of organ damage
Hypertensive urgency: PO medications
Hypertensive emergency: IV medication
You need to stabilize and transfer to higher level of care/MEDEVAC
Complications
Aortic dissection AMI Ischemic stoke Hemorrhagic stroke Acute kidney injury Retinal hemorrhage and blindness CHF with pulmonary edema and acute respiratory failure Death