Cardiac Explorations – biological explorations


1/ Sedimentation rate (VS) :

C & rsquo; is a simple marker of & rsquo; inflammation. It must be properly height and standard conditions.

  • It allows to suspect a systemic disease that has cardiovascular consequences.
  • It is useful for suspected d & rsquo; damage such as & rsquo; streptococcal infection, arteritis inflammatory, l & rsquo; infective endocarditis.

2/ Formula Blood Count (FNS) :

It can highlight :

  • leukocytosis, witness & rsquo; an underlying infection
  • Iron deficiency anemia or & rsquo; inflammatory pace.

3/ the ASO (Anti Streptolysines O) :

C & rsquo; is a marker of & rsquo; streptococcal infection, signaling the passage of hemolytic streptococcus P in the blood. C & rsquo; is a marker applied in certain conditions to cardiac consequences as rheumatic fever (Hriaa).

4/ CRP (C reactive protein) :

C & rsquo; is a protein of & rsquo; inflammation. It is still high in the & rsquo; streptococcal infection. It is more specific than the VS.

5/ blood fibrinogen :

C & rsquo; is an inflammatory marker.

6/ The smear throat :

Its interest lies in highlighting to the & rsquo; direct examination of strep germ.

7/ Blood culture :

C & rsquo; is a fundamental review of suspected d & rsquo; bacterial endocarditis; it must be taken from the middle of Castaneda, during febrile peak or if thrill and brought immediately bacteriology lab.

8/ The urine sediment :

practice exam seeking & rsquo; microscopic hematuria and d & rsquo; proteinuria, witnessing & rsquo; kidney localization of the & rsquo; infection.

9/ Glycemia :

systematically sought, because diabetes is a cardiovascular risk factor and major independent.

10/ Renal function :

Systematically explored to search for systemic involvement or to allow d & rsquo; dosage adjustment of cardiovascular drugs.

12/ L & rsquo; exploration & rsquo; a lipid abnormality (EAL) :

Consists in assaying total cholesterol, its fractions (HDL et LDL), and triglycerides. A lipid abnormality is a cardiovascular risk factor and will be asked before any exploration & rsquo; ischemic heart disease and / or the & rsquo; hypertension.

13/ liver function :

Can be requested in search of hepatic effects of & rsquo; heart disease or routinely to avoid the toxicity of certain drugs cardiotropic hepatic metabolism.


BNP is a protein circulating in the blood. It is produced in abundance by the left ventricle in the left heart failure, under the & rsquo; effect of & rsquo; stretching of heart muscle cells. Its dosage is recently a diagnostic aid of & rsquo; heart failure.

15/ Troponines, myoglobine, CPK mb… :

myocardial necrosis markers

Cours du Dr Chelouache .T – Faculty of Constantine