A nurse and a newly licensed nurse are providing care for a client who has distributive shock. How should the nurse explain the pathophysiology of distributive shock to the newly licensed nurse?
"Distributive shock occurs due to loss of myocardial contractility."
"Distributive shock occurs due to loss of blood volume."
"Distributive shock occurs due to systemic vasodilation."
"Distributive shock occurs due to increased systemic vascular resistance."
The Correct Answer is C
A. "Distributive shock occurs due to loss of myocardial contractility": This statement is incorrect. Distributive shock is not primarily caused by loss of myocardial contractility. Instead, distributive shock is characterized by widespread vasodilation, which leads to inadequate tissue perfusion despite normal or high cardiac output.
B. "Distributive shock occurs due to loss of blood volume": This statement is inaccurate. Distributive shock is not primarily caused by loss of blood volume. While hypovolemia (loss of blood volume) can lead to shock, distributive shock specifically involves excessive vasodilation, resulting in a relative hypovolemia due to pooling of blood in the expanded vascular bed.
C. "Distributive shock occurs due to systemic vasodilation": This statement is correct. Distributive shock, also known as vasodilatory shock, occurs due to widespread vasodilation of the systemic vasculature. This vasodilation leads to a decrease in systemic vascular resistance, which results in the redistribution of blood flow away from vital organs and tissues, leading to inadequate tissue perfusion and shock.
D. "Distributive shock occurs due to increased systemic vascular resistance": This statement is incorrect. Distributive shock is characterized by decreased systemic vascular resistance due to vasodilation, not increased systemic vascular resistance. Increased systemic vascular resistance is more commonly associated with conditions such as hypertension or obstructive shock.
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Related Questions
Correct Answer is A
Explanation
A. Rheumatoid arthritis: Rheumatoid arthritis is an autoimmune condition characterized by chronic inflammation of the joints. Some research suggests a possible link between autoimmune disorders such as rheumatoid arthritis and Meniere's disease. Autoimmune conditions can affect the inner ear, leading to vestibular dysfunction and contributing to the development of Meniere's disease.
B. Bacterial pneumonia: Bacterial pneumonia is a respiratory infection caused by bacterial pathogens. There is no direct association between bacterial pneumonia and an increased risk of developing Meniere's disease. Meniere's disease primarily affects the inner ear and is not related to respiratory infections.
C. Macular degeneration: Macular degeneration is a degenerative eye disease that affects the central portion of the retina. There is no known association between macular degeneration and an increased risk of developing Meniere's disease. These conditions affect different parts of the body and are not related in terms of etiology or risk factors.
D. Osteoporosis: Osteoporosis is a condition characterized by loss of bone density, leading to an increased risk of fractures. There is no direct association between osteoporosis and an increased risk of developing Meniere's disease. These conditions affect different systems in the body and are not known to be related.
Correct Answer is ["B","C","E"]
Explanation
A. Varicose veins: Varicose veins are dilated, twisted veins that commonly occur in the legs and are typically associated with venous insufficiency or venous valve dysfunction rather than valvular dysfunction of the heart.
B. Heart murmur: This is the correct answer. Valvular dysfunction can result in abnormal blood flow patterns across the heart valves, leading to turbulent blood flow and the production of audible heart murmurs upon auscultation.
C. Palpitations: Palpitations, or the sensation of rapid, pounding, or irregular heartbeats, can occur with valvular dysfunction, particularly if the dysfunction leads to alterations in heart rhythm or cardiac output.
D. Abdominal pain: Abdominal pain is not typically associated with valvular dysfunction. It may be a symptom of various gastrointestinal or abdominal conditions, but it is not a direct manifestation of valvular heart disease.
E. Chest pain: This is the correct answer. Chest pain can occur with valvular dysfunction, especially if the dysfunction leads to inadequate blood flow to the heart muscle (ischemia), which can cause angina or chest discomfort.
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