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Cryptic shock
Pre-shock is also known as compensated shock, or cryptic shock[1][2] describes the state in which the human body is still capable of offsetting the abnormally reduced tissue perfusion by exerting compensatory mechanism.[1] For instance, in a solely hypovolemia without formally entering shock state, the body is able to constrict peripheral vessels, accelerate heart rate, and boost myocardial contractility to compensate for the negative impacts out of a certain percentage reduction in total effective arterial blood volume. Thus, the person, particularly for those non-elderly who have higher physical reserve, might not be symptomatic of such blood loss accounted for certain amount of total blood volume in the body and might even manifest a normal systolic pressure as well as diastolic pressure. Taken together, tachycardia, a modest change in overall blood pressure in either trend—increase or decrease—or hyperlactatemia that is not deemed to be moderate to severe, are the likely only early signs of clinical shock.[2] Clinical shock aka uncompensated shock is termed overt shock.[3] References
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