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.
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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Tachypnoea, which refers to an increased respiratory rate, is an early symptom of hypovolemic shock. It is the body's compensatory response to inadequate tissue perfusion and decreased oxygen delivery. The increased respiratory rate is an attempt to improve oxygenation and maintain vital organ function.
B. Heart blocks in (option B) are incorrect because Heart blocks refer to disruptions in the electrical conduction system of the heart and are not specific to hypovolemic shock.
C. Vomiting in (option C) is incorrect because: Vomiting may occur in various conditions, including shock, but it is not exclusive to hypovolemic shock and can be present in other forms of shock or illnesses.
D. Bradycardia in (option D) is incorrect because Bradycardia, or a slow heart rate, is not typically an early symptom of hypovolemic shock. Instead, tachycardia (rapid heart rate) is more commonly observed as a compensatory response to maintain cardiac output.
E. Hypotension in (option E) is incorrect because Hypotension, or low blood pressure, can occur in hypovolemic shock but is generally considered a later-stage symptom. In the early stages, compensatory mechanisms may help maintain blood pressure, so hypotension may not be present initially.
F. Bradypnea in (option F) is incorrect because: Bradypnea refers to a slow respiratory rate, which is not typically an early symptom of hypovolemic shock. Tachypnoea, as mentioned earlier, is the more common early respiratory symptom.
Correct Answer is D
Explanation
In septic shock, prompt administration of antibiotics is crucial in order to target the underlying infection and prevent further progression of the septic process. Antibiotics help to eradicate the causative organisms and reduce the bacterial load, which can help improve patient outcomes.
While all the options mentioned are important interventions in the management of septic shock, initiating antibiotic therapy is considered a priority in order to address the underlying infection and prevent sepsis-related complications.
A. Giving a 2000 mL normal saline bolus in (option A) is incorrect because: Fluid resuscitation is important in septic shock to restore intravascular volume, but antibiotic therapy takes precedence as it directly targets the underlying infection.
B. Starting an insulin drip to maintain blood glucose at 110 to 150 mg/dL in (option B) is incorrect because Glycemic control is important in septic shock, but it is not the first priority compared to addressing the infection.
C. Giving acetaminophen (Tylenol) 650 mg rectally in (option C) is incorrect because Antipyretic medications can help reduce fever, but they do not address the underlying infection or stabilize the patient's condition.
E. Starting norepinephrine (Levophed) to keep systolic blood pressure >90 mm Hg in (option E) is incorrect because: Vasopressor support may be necessary in septic shock to maintain adequate blood pressure, but initiating antibiotics takes priority in order to address the underlying infection.
Therefore, in a patient with septic shock presenting with the given signs and symptoms, the nurse should first implement the intervention of giving the prescribed antibiotics to target the underlying infection.
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