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| ==Features==
| | #REDIRECT[[Headache]] |
| #Sudden onset or accelerating pattern | |
| #No similar headache in past
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| #Age >50yr
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| #Occipitonuchal HA
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| #Visual disturbances
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| #Exertional
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| #Family history of SAH
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| #Focal neurologic signs
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| #Diastolic BP > 120
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| #Papilledema
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| #Jaw claudication
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| ==Clinical Context==
| |
| Headache in setting of:
| |
| #Infection
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| #Cancer
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| #Immunosuppression
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| #Syncope
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| #Trauma
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| #Altered mental status
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| #Systemic illness (fever, stiff neck, rash)
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| #Nausea/vomiting
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| #Patient on anticoagulation, steroids, NSAIDs
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| | |
| ==See Also==
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| *[[Headache]]
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| | |
| ==Source==
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| *UpToDate
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| [[Category:Neuro]]
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