A client with septic shock develops disseminated intravascular coagulation (DIC). Which pathophysiologic process should the nurse recognize as the cause of the coagulation problem?
Activation of complement pathways.
Inhibition of red blood production.
Production of extra platelets.
Depletion of clotting factors.
The Correct Answer is D
Rationale
A. The complement system is part of the immune response and can be activated in various conditions, including sepsis. However, activation of complement pathways does not directly cause DIC. Instead, in septic shock, the release of pro-inflammatory cytokines and tissue factor can trigger systemic coagulation activation, leading to DIC.
B. Inhibition of red blood cell production, such as in conditions like aplastic anemia or certain types of bone marrow disorders, does not directly cause DIC. DIC is primarily a disorder of excessive activation of clotting factors in response to underlying conditions like sepsis, trauma, or cancer.
C. Production of extra platelets, or thrombocytosis, is not the cause of DIC. Thrombocytosis can occur in response to various conditions, but DIC involves consumption of platelets due to widespread activation of clotting within the vasculature.
D. DIC is characterized by the widespread consumption and depletion of clotting factors and platelets as they are used up in the formation of microthrombi throughout the bloodstream. This depletion leads to an increased risk of bleeding due to insufficient clotting factors remaining to maintain hemostasis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale
A. Both baked potato with skin and raw carrots are high-fiber foods. The skin of the potato and raw carrots contain significant amounts of fiber, which can aggravate symptoms of ulcerative colitis.
B. Whole-grain cereals are high in fiber, which is not suitable for a low-fiber diet recommended for ulcerative colitis.
C. Roasted turkey is a lean protein source and generally suitable for a low-fiber diet. Canned vegetables can vary in fiber content; however, they are typically lower in fiber compared to fresh vegetables. The nurse should verify the specific type of canned vegetables to ensure they are low in fiber.
D. Fresh strawberries are high in fiber and should be avoided on a low-fiber diet.
Correct Answer is ["A","B","C"]
Explanation
Rationale
A. This involves visually inspecting the chest to ensure both sides rise and fall equally during ventilation. Symmetrical chest movement suggests that both lungs are being adequately ventilated.
B. Auscultation involves listening with a stethoscope over the chest to confirm the presence of breath sounds in both lung fields. Bilateral breath sounds indicate that the ETT is correctly positioned in the trachea, allowing air to reach both lungs.
C. A chest x-ray provides a definitive confirmation of the ETT placement in relation to the trachea and lungs. It allows visualization of the tube's position relative to anatomical landmarks, such as the carina, which helps ensure proper placement.
This involves checking the markings on the ETT tube to ensure it is inserted to the correct depth. Typically, the ETT should be positioned with its tip approximately 2 to 4 cm above the carina, which corresponds to the 22-26 cm mark at the teeth line in adults. However, it does not confirm correct placement.
E. Capillary refill is a measure of peripheral perfusion and is unrelated to ETT placement. It assesses circulatory status by pressing on a nail bed and observing the time it takes for color to return. It does not provide information about ETT placement.
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