Other causes include burns, as well as excess urine loss due to diabetic ketoacidosis and diabetes insipidus.Signs and symptoms of hypovolemic shock include:

A rapid, weak, thready pulse due to decreased blood flow combined with tachycardia
Cool skin due to vasoconstriction and stimulation of vasoconstriction
Rapid and shallow breathing due to sympathetic nervous system stimulation and acidosis
Hypothermia due to decreased perfusion and evaporation of sweat
Thirst and dry mouth, due to fluid depletion
Cold and mottled skin (livedo reticularis), especially extremities, due to insufficient perfusion of the skinThe severity of hemorrhagic shock can be graded on a 1–4 scale on the physical signs. The shock index (heart rate divided by systolic blood pressure) is a stronger predictor of the impact of blood loss than heart rate and blood pressure alone. This relationship has not been well established in pregnancy-related bleeding. Cardiogenic
Cardiogenic shock is caused by the failure of the heart to pump effectively. This can be due to damage to the heart muscle, most often from a large myocardial infarction. Other causes of cardiogenic shock include dysrhythmias, cardiomyopathy/myocarditis, congestive heart failure (CHF), myocardial contusion, or valvular heart disease problems.Symptoms of cardiogenic shock include:

Distended jugular veins due to increased jugular venous pressure
Weak or absent pulse
Abnormal heart rhythms, often a fast heart rate
Pulsus paradoxus in case of tamponade
Reduced blood pressure
Shortness of breath, due to pulmonary congestion

Obstructive
Obstructive shock is a form of shock associated with physical obstruction of the great vessels of the systemic or pulmonary circulation. Several conditions can result in this form of shock.
Psorosperm (from the Greek ψωρα itch and σπερμα seed) is a former name of a number of parasitic protozoa that produce cystlike or sporelike structures in the tissue of hosts. The term is now essentially obsolete. Some that affect vertebrate hosts are now called coccidia. Others, such as the cause of pébrine in silkworms, are now recognized as microsporidians, and some are myxosporidians. The genus Psorospermium (which includes the species Psorospermium haeckeli) itself is a parasite of crayfishes, and belongs to an enigmatic group of unicellular organisms that some biologists think may be related to the common ancestors of animals and fungi.J. Müller introduced the term in German (as Psorospermien) in 1841.Psorosperm was at one point believed to be the cause of Dariers disease. "Psorospermiasis" is classified under 136.4 in ICD-9. == References ==