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 D
Explanation
A. Diminished hair growth on the lower extremities: Diminished hair growth on the lower extremities is not typically a manifestation of peripheral venous disease. Instead, it may suggest poor circulation or arterial insufficiency.
B. Loss of pigmentation over the shin area: Loss of pigmentation over the shin area can occur in conditions such as chronic venous insufficiency, which is a form of peripheral venous disease. However, it is not the most characteristic manifestation.
C. Shiny appearance to the lower extremities: A shiny appearance to the lower extremities is often associated with arterial insufficiency rather than peripheral venous disease. It can indicate thinning of the skin due to poor circulation and oxygenation.
D. Swollen and enlarged veins: Swollen and enlarged veins, also known as varicose veins, are classic manifestations of peripheral venous disease. These veins result from venous insufficiency, which leads to blood pooling and increased pressure in the veins, causing them to dilate and become visibly enlarged.
Correct Answer is B
Explanation
A. Encouraging increased mobility: While mobility is important for overall health, it may not be the primary lifestyle modification emphasized in the discharge teaching for heart failure. The focus is typically on dietary and fluid restrictions, medication adherence, and symptom management.
B. Dietary and fluid restrictions: Dietary and fluid restrictions are essential lifestyle modifications for managing heart failure. Clients are often advised to follow a low-sodium diet and restrict fluid intake to prevent fluid retention and exacerbation of heart failure symptoms.
C. Cessation of intravenous (IV) drug use: While cessation of intravenous drug use is important for overall health and may be addressed if relevant to the client's situation, it may not be a primary focus of discharge teaching specifically related to heart failure.
D. Cessation of hormonal supplements: Cessation of hormonal supplements may be recommended if they contribute to heart failure or exacerbate its symptoms. However, this recommendation would be specific to individual client circumstances and may not apply to all clients with heart failure.
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