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![Figure 3.](/view/journals/anpr/58/3/inline-i0003-3006-58-3-126-f03.png)
Hypertension algorithm. Episodes of hypertension rarely require treatment. Asymptomatic episodes will generally correct after addressing possible causes. If pressure remains elevated, referral to the primary care physician should be considered. When accompanied by symptoms, emergency medical service transport should be arranged and nitroglycerin or labetalol may be considered.
![Figure 5.](/view/journals/anpr/58/3/inline-i0003-3006-58-3-126-f05.png)
Chest pain algorithm. It may be difficult to determine whether sudden onset of chest pain is an episode of stable angina or acute coronary syndrome. If the episode was provoked in a patient with a known history of ischemic heart disease and spontaneously subsides or responds to his or her usual dose of nitroglycerin, treatment may be continued and emergency medical support transport is not necessary.
![Figure.](/view/journals/anpr/67/3/inline-i0003-3006-67-3-170-f01.png)
Vial of 1% methylene blue.