The common denominator of all shock states is which one of the following?

Inefficient metabolism resulting from inadequate nutrition.

Inadequate tissue perfusion results in impaired cellular metabolism.

Vasoconstriction and reflexive vasodilation due to circulating mediators.

Hypovolemia results from blood loss.

Answer and Explanation

The Correct Answer is B

Shock is a state of inadequate tissue perfusion, resulting in compromised oxygen and nutrient delivery to cells and impaired cellular metabolism. Regardless of the specific cause or type of shock (e.g., hypovolemic, cardiogenic, distributive), the underlying problem is the failure to supply sufficient oxygen and nutrients to the body's tissues. This inadequate tissue perfusion can lead to cellular dysfunction, organ failure, and ultimately, life-threatening consequences.
A. Inefficient metabolism resulting from inadequate nutrition in (option A) is incorrect because While inadequate nutrition can contribute to the overall health status and resilience of an individual, it is not the central mechanism underlying all shock states.
C. Vasoconstriction and reflexive vasodilation due to circulating mediators in (option C) is incorrect because Vasoconstriction and vasodilation are physiological responses that can occur in various types of shock, but they are not the fundamental common denominator. Inadequate tissue perfusion remains the core issue.
D. Hypovolemia resulting from blood loss in (option D) is incorrect because Hypovolemia, which refers to decreased blood volume, is one potential cause of shock, specifically hypovolemic shock. However, other types of shock, such as cardiogenic or distributive shock, may not be primarily characterized by hypovolemia.
Therefore, the common denominator of all shock states is inadequate tissue perfusion, resulting in impaired cellular metabolism.

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Correct Answer is ["A","B","D","E"]

Explanation

A. Narrowed pulse pressure: In cardiogenic shock, the cardiac output is compromised, resulting in reduced stroke volume and subsequent narrowed pulse pressure. The pulse pressure is the difference between systolic and diastolic blood pressure.
B. Tachycardia: Tachycardia is a compensatory response in cardiogenic shock, as the body attempts to increase cardiac output to maintain tissue perfusion despite decreased stroke volume. Increased heart rate is a common finding in this condition.
D. Pulmonary congestion: Cardiogenic shock is often associated with impaired left ventricular function, leading to an inadequate pump mechanism. This can result in fluid accumulation and congestion in the pulmonary circulation, leading to pulmonary edema and congestion. Patients may experience symptoms such as dyspnea, crackles on lung auscultation, and increased work of breathing.
E. Elevated pulmonary artery wedge pressure (PAWP): PAWP is a measurement obtained during invasive hemodynamic monitoring. In cardiogenic shock, the impaired left ventricular function leads to increased left atrial pressure, which is reflected by an elevated PAWP. Elevated PAWP indicates increased fluid volume and congestion in the left side of the heart.
C. Elevated SBP in (option C) is incorrect because Elevated systolic blood pressure (SBP) is not a typical finding in cardiogenic shock. Instead, hypotension or decreased blood pressure is commonly observed due to reduced cardiac output.

A. 18 Ml B. 5480 Ml C. 6,480 mL D. 4234 mL

Correct Answer is C

Explanation

Heart rate: 72 beats per minute Stroke volume: 90 mL/contraction

Cardiac output = Heart rate × Stroke volume

Cardiac output = 72 beats/minute × 90 mL/contraction

To simplify the calculation, you can convert the units:

72 beats/minute × 90 mL/contraction = (72 × 90) beats/minute × mL/contraction

Now, perform the multiplication:

72 × 90 = 6,480

Therefore, the cardiac output is 6,480 mL per minute.

The correct answer is:

C. 6,480 mL

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The common denominator of all shock states is which one of the following?

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Naxlex Comprehensive Predictor Exams

The cardiac ICU nurse is assessing a patient who is in cardiogenic shock. Which hemodynamic manifestations and/or signs and symptoms do the nurse expect? Select all that apply.

Correct Answer is ["A","B","D","E"]

Explanation

What is the cardiac output of a patient whose heart rate is 72 beats per minute with a stroke volume of 90 mL/contraction?

Correct Answer is C

Explanation

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