Certified Emergency Nursing 2024 Exam Questions and Correct Answer

Hypovolemic Shock Answer: Decreased cellular perfusion secondary to lack of circulating volume or not ENOUGH GAS. Cardiogenic Shock Answer: Decreased cellular perfusion secondary to maldistribution of oxygen to the periphery. Its like adding a larger engine without increasing the size of the tank. Obstructive shock Answer: Decreased cellular perfusion secondry to obstruction of blood into or out of the ventricles (eg. pulmonary emboli, tamponade, tension pneumo. Like getting dirt or blockage in the fuel line. Prolonged lactic acidosis leads to: Answer: microvascular thrombosis disseminated intravascular coagulation (DIC) Compensated Shock Answer: When patient is able to maintain blood pressure. Body attempting to maintain homeostasis. Increases perfusion to brain, decreases blood flow to kidneys. Uncompensated Shock Answer: Shock at cellular level. Intracellular fluid leaks into interstitium causing third spacing and edema, bp decreases, hr increases, respiratory rate increases, Hypovolemic Shock Answer: Blood or fluid loss reduces circulating blood volume and cardiac output. Mean Arterial Pressure Answer: MAP = (Systolic pressure + 2(Diastolic) / 3 Want a MAP above 60 Hypovolemic shock intervention