Table of contents Chapter I. The methodology of prescribing laboratory and paraclinical investigations Chapter II. Blood tissue exploration Chapter III. Morpho-functional exploration of the red series Chapter IV. Exploring the white series leukocytes Chapter V. Exploring the megakaryo-platelet series Chapter VI. Primary hemostasis Chapter VII. Secondary hemostasis Chapter VIII. Pathophysiology of carbohydrate metabolism Chapter IX. Pathophysiology of lipid metabolism Chapter X. Pathophysiology of protein metabolism Chapter XI. Pathophysiology of hydroelectrolytic balance Chapter XII. The pathophysiology of acid-base balance Chapter XIII. Pathophysiology of the nervous system Annexes References