An emergency medical device , comprising: an emergency medical subsystem including at least one operational component which degrades over the lifetime of the device, the subsystem operable to execute an emergency medical procedure; and an emergency medical controller operable to control an activation of the emergency medical subsystem , wherein the emergency medical controller is structurally configured to conditionally actuate a device readiness indicator indicative of an operational readiness of the at least one operational component to execute the emergency medical procedure; wherein the emergency medical controller is structurally configured to conditionally actuate a failure warning indicator indicative of an impending failure of the operational readiness of the at least one operational component to execute the emergency medical procedure; and wherein the emergency medical controller includes a predictive failure analyzer structurally configured to: use a soft-failure limit as an indicator of premature degradation which provides a predictor of future failure and use a hard-failure limit as an indicator of actual failure; and actuate the failure warning indicator based on a predictive failure analysis of a premature degradation of the at least one operational component . an emergency medical subsystem including at least one operational component which degrades over the lifetime of the device, the subsystem operable to execute an emergency medical procedure; and an emergency medical controller operable to control an activation of the emergency medical subsystem , wherein the emergency medical controller is structurally configured to conditionally actuate a device readiness indicator indicative of an operational readiness of the at least one operational component to execute the emergency medical procedure; wherein the emergency medical controller is structurally configured to conditionally actuate a failure warning indicator indicative of an impending failure of the operational readiness of the at least one operational component to execute the emergency medical procedure; and wherein the emergency medical controller includes a predictive failure analyzer structurally configured to: use a soft-failure limit as an indicator of premature degradation which provides a predictor of future failure and use a hard-failure limit as an indicator of actual failure; and actuate the failure warning indicator based on a predictive failure analysis of a premature degradation of the at least one operational component . wherein the emergency medical controller is structurally configured to conditionally actuate a device readiness indicator indicative of an operational readiness of the at least one operational component to execute the emergency medical procedure; wherein the emergency medical controller is structurally configured to conditionally actuate a failure warning indicator indicative of an impending failure of the operational readiness of the at least one operational component to execute the emergency medical procedure; and wherein the emergency medical controller includes a predictive failure analyzer structurally configured to: use a soft-failure limit as an indicator of premature degradation which provides a predictor of future failure and use a hard-failure limit as an indicator of actual failure; and actuate the failure warning indicator based on a predictive failure analysis of a premature degradation of the at least one operational component . use a soft-failure limit as an indicator of premature degradation which provides a predictor of future failure and use a hard-failure limit as an indicator of actual failure; and actuate the failure warning indicator based on a predictive failure analysis of a premature degradation of the at least one operational component . <EOS>