The nurse is assigned to the care of a client in the ICU who is in cardiogenic shock. What priority nursing intervention is necessary to conserve myocardial energy and decrease workload of the heart?

A. White blood cell count "WBC" is used in the scoring system for DIC: WBC is not part of the DIC scoring system. The diagnosis relies on platelet count, fibrin degradation products, PT, aPTT, and fibrinogen levels. WBC may be elevated due to infection but does not directly indicate DIC.

B. DIC cases are triggered by other events such as infections: DIC is a secondary disorder that occurs in response to conditions like sepsis, trauma, malignancy, or obstetric complications. It results from widespread activation of coagulation and subsequent consumption of clotting factors.

C. DIC is a disease caused by a gene mutation: DIC is not a hereditary or genetic disease. It is an acquired condition resulting from a pathological event that triggers systemic coagulation. Genetic mutations are not implicated in its development.

D. Heparin is considered the gold standard for all clients with DIC: Heparin is not universally used in DIC and is reserved for specific cases such as chronic or thrombotic DIC. The mainstay of treatment is addressing the underlying cause and providing supportive care, including transfusions of platelets or clotting factors as needed.

A. Liver: The liver is commonly affected in MODS but typically later in the progression. Hepatic dysfunction results from prolonged hypoperfusion and inflammatory mediators rather than being the initial site of organ failure. Early failure usually occurs in more vulnerable organs.

B. Lungs: The lungs are usually the first organ to show signs of dysfunction in MODS, often manifesting as acute respiratory distress syndrome (ARDS). They are highly sensitive to hypoperfusion and inflammatory cytokines. Early pulmonary involvement can compromise oxygenation and exacerbate other organ failures.

C. Brain: Neurological changes, such as confusion or altered mental status, occur later in MODS as hypoxia and metabolic disturbances progress. The brain is affected after primary organs like the lungs and heart begin to fail. Early MODS rarely presents initially with brain dysfunction.

D. Kidneys: Renal failure is common in MODS but generally occurs after the lungs and cardiovascular system are affected. Reduced perfusion and hypoxia contribute to acute kidney injury. It is not the typical first organ to fail in the sequence of MODS.