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What Causes Emergency Hypertension

Emergency hypertension can result fromcholesterollevels may help predict the
several disorders, drugs, andrisk of CAD more accurately than total
procedures. Be alert for any of thecholesterol levels. An elevated LDL
following in your patient's history.cholesterol level indicates an increased
Cardiovascular Disordersacute leftrisk of CAD, but a high HDL cholesterol
ventricular failureacute myocardiallevel indicates a lower risk.
infarctiondissecting aorticA series of cardiac serum enzyme assays
aneurysmunstable anginacan confirm an MI. Total creatine kinase
pectorisworsening of chronic(CK) levels rise within 6 hours after
hypertensionthe start of an Ml and peak in 12 to 24
Neurologic Disorderscerebrovascularhours after cardiac tissue death. When
accidenthead traumahypertensivecardiac tissue dies, CK-MB isoenzymes,
encephalopathyintracranialwhich are found only in myocardial
hemorrhagespinal cordcells, enter the blood­stream.
diseasesubarachnoid hemorrhageMeasuring their level can help determine
Renal Disordersacutethe amount of myocardial damage. Cardiac
glomerulonephritisrenal parenchymatoustroponin levels may be better indicators
diseaserenovascular hypertensionof myocardial damage than CK levels .
Other DisorderseclampsianecrotizingThe lactate dehydrogenase (LD) level
vasculitispheochromocytomapreeclampsiascalso can indicate an MI. The blood's LD
leroderma crisisvasculitislevel rises 24 to 48 hours after an MI
Drugsamphetaminesclonidine (withdrawaland peaks in 3 to 6 days. Two of the
syndrome)cocainelysergic acidfive isoenzymes that make up LD-LD1 and
diethylamidemonoamine oxidase inhibitorsLD2-appear primarily in the heart.
taken withfoods containing tyramineoralNormally, the LD2 level is higher than
contraceptivesphencyclidinesympathomimetthe LD1 level. But when a patient has
ic drugshad an MI, the LD1 level is higher.
Medical and Surgical ProcedurescarotidOther blood tests, such as aspartate
artery manipulationcoronary arteryaminotransferase and myoglobin protein
bypass surgerylevels, also may be used to detect an ML
Diagnostic Tests for CadHowever, because these tests are not
A physician uses certain tests to assessspecific for MI, they aren't commonly
the patient's risk of CAD, others toused. With an MI, the level of serum
indicate whether he has CAD, and stillaspartate aminotransferase, formerly
others to determine if he has had ancalled serum glutamic-oxaloacetic
MI-a serious complication of CAD.transaminase, rises. But because serum
Blood Testsaspartate aminotransferase doesn't
A physician typically orders a serumcontain any heart-specific isoenzymes,
lipid profile to assess the patient'sthe results aren't definitive. The
risk of CAD. A total blood cholesterolmyoglobin protein level is highly
level below 200 mg/dl indicates asensitive to myocardial injury, but an
relatively low risk of CAD. A level ofelevated level doesn't confirm an MI
200 to 239 mg/dl indicates a moderatebecause trauma, inflammation, and
risk; one that exceeds 239 mg/dlischemia also can increase the myoglobin
indicates a serious risk of CAD.protein level.
High-density lipoprotein (HDL) and LDL



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