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."

Answer and Explanation

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

Explanation

A. Elevated erythrocyte sedimentation rate (ESR): Elevated ESR is commonly seen in inflammatory conditions such as pericarditis. ESR measures the rate at which red blood cells settle in a tube of blood over a certain period, and elevated levels indicate inflammation or tissue damage.

B. Increased C-reactive protein (CRP): CRP is an acute-phase reactant produced by the liver in response to inflammation. Elevated CRP levels are indicative of inflammation, making it a useful marker in pericarditis.

C. Elevated thyroid-stimulating hormone (TSH): Elevated TSH levels are not typically associated with pericarditis. TSH is a hormone produced by the pituitary gland that stimulates the thyroid gland to produce thyroid hormones. Elevated TSH levels are seen in conditions such as hypothyroidism.

D. Increased brain natriuretic peptide (BNP): BNP is a hormone produced by the heart in response to increased pressure and volume overload. Pericarditis can lead to increased pressure within the heart, resulting in elevated BNP levels. Therefore, increased BNP levels are anticipated in pericarditis.

E. Increased troponin I: Troponin I is a cardiac biomarker released into the bloodstream when there is damage to cardiac muscle cells. While pericarditis primarily involves inflammation of the pericardium (the sac surrounding the heart), severe cases can lead to myocardial involvement and subsequent release of troponin I. Therefore, increased troponin I levels may be observed in pericarditis, especially if there is myocardial involvement.

A. The client whose mother and uncle were diagnosed with this same condition. B. The client who is recovering from a recent illness that caused vomiting and diarrhea. C. The client who is out of work and has been experiencing increased stress. D. The client who uses oxygen at night to treat obstructive sleep apnea.

Correct Answer is A

Explanation

A. The client whose mother and uncle were diagnosed with this same condition: Hypertrophic cardiomyopathy (HCM) often has a genetic component, with a familial predisposition observed in many cases. Individuals with a family history of HCM, especially in first-degree relatives such as parents or siblings, are at higher risk of developing the condition due to genetic factors.

B. The client who is recovering from a recent illness that caused vomiting and diarrhea: Acute illnesses such as vomiting and diarrhea can lead to dehydration, electrolyte imbalances, and transient changes in cardiac function. While dehydration and electrolyte imbalances may exacerbate symptoms in individuals with existing cardiac conditions, they are not primary risk factors for developing hypertrophic cardiomyopathy (HCM).

C. The client who is out of work and has been experiencing increased stress: Chronic stress and psychosocial factors may contribute to the progression of cardiovascular disease in general, but they are not specific risk factors for developing hypertrophic cardiomyopathy (HCM).

D. The client who uses oxygen at night to treat obstructive sleep apnea: While obstructive sleep apnea is associated with cardiovascular complications, including hypertrophic cardiomyopathy (HCM), the use of oxygen therapy at night to treat sleep apnea does not directly increase the risk of developing HCM. However, untreated obstructive sleep apnea may lead to chronic hypoxia and other cardiac issues over time.

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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?

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Naxlex Comprehensive Predictor Exams

A nurse is reviewing laboratory results for a client who has pericarditis. Which of the following blood test results should the nurse anticipate? (Select All that Apply.)

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

Explanation

A nurse is teaching a group of clients about risk factors for developing hypertrophic cardiomyopathy (HCM). Which of the following clients should the nurse understand is most at risk for developing HCM?

Correct Answer is A

Explanation

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