Anaphylactic shock is a subgroup of which type of shock?

Hypovolemic

Obstructive

Cardiogenic

Distributive

Answer and Explanation

The Correct Answer is D

Choice A rationale:

Hypovolemic shock is a type of shock that occurs when there is a significant loss of blood or fluid volume, leading to decreased cardiac output and tissue perfusion. This can be caused by severe bleeding, dehydration, burns, or other conditions that result in fluid loss. While anaphylaxis can involve some fluid shifts, it is not primarily characterized by a loss of blood or fluid volume.

Key features of hypovolemic shock that distinguish it from anaphylactic shock include:

Prominent signs of dehydration: Dry skin and mucous membranes, decreased urine output, sunken eyes, and poor skin turgor.

Hemodynamic changes: Tachycardia, narrow pulse pressure, and cold extremities due to vasoconstriction to maintain blood pressure.

Laboratory findings: Elevated hematocrit and blood urea nitrogen (BUN) levels, indicating hemoconcentration and decreased kidney perfusion.

Choice B rationale:

Obstructive shock is a type of shock that occurs when there is an obstruction to blood flow, preventing adequate circulation to the body's tissues. This can be caused by conditions such as pulmonary embolism, cardiac tamponade, or tension pneumothorax. Anaphylaxis does not involve a physical obstruction to blood flow.

Key features of obstructive shock that distinguish it from anaphylactic shock include:

Evidence of the underlying obstruction: Jugular venous distension (cardiac tamponade), muffled heart sounds (cardiac tamponade), or respiratory distress (pulmonary embolism or tension pneumothorax).

Distinctive hemodynamic changes: Equalization of diastolic pressures between the right and left ventricles (cardiac tamponade).

Specific imaging findings: Enlarged cardiac silhouette on chest X-ray (pericardial effusion), filling defects in the pulmonary arteries on CT angiography (pulmonary embolism), or hyperexpanded lung fields with a deviated trachea on chest X-ray (tension pneumothorax).

Choice C rationale:

Cardiogenic shock is a type of shock that occurs when the heart is unable to pump enough blood to meet the body's needs. This can be caused by conditions such as heart attack, heart failure, or cardiomyopathy. Anaphylaxis does not primarily involve a failure of the heart's pumping function.

Key features of cardiogenic shock that distinguish it from anaphylactic shock include:

Evidence of heart failure: Pulmonary edema, elevated jugular venous pressure, and a third heart sound (S3 gallop).

Electrocardiogram (ECG) changes: ST-segment elevation or depression, Q waves, or other signs of myocardial ischemia or infarction.

Elevated cardiac enzymes: Troponin and creatine kinase-MB (CK-MB) levels, indicating heart muscle damage.

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Correct Answer is C

Explanation

Choice A rationale:

Recapping needles is a dangerous practice that significantly increases the risk of needlestick injuries.

The act of recapping involves directing the sharp end of the needle towards one's hand, creating a high likelihood of accidental puncture.

Even experienced healthcare professionals are susceptible to needlestick injuries during recapping.

Wastebaskets are not designed for the safe disposal of sharps and can easily be punctured, leading to potential exposure to bloodborne pathogens.

Choice B rationale:

While it is true that needles should not be recapped on ABG specimens, this option does not address the broader issue of safe needle disposal in general.

Focusing solely on ABG specimens could lead to the misconception that recapping is acceptable for other types of needles.

Choice D rationale:

Breaking needles in half is not recommended as a standard practice for needle disposal.

This action can create sharp fragments that are difficult to handle and can still cause injuries.

Sharps disposal containers are designed to safely contain intact needles and should be used as the primary method of disposal.

Choice C rationale:

Placing uncapped needles directly into a puncture-proof container is the safest and most recommended practice for needle disposal.

These containers are specifically designed to prevent needlestick injuries by shielding the sharps from accidental contact. They are typically made of hard plastic or metal and are clearly labeled for biohazard waste.

Using puncture-proof containers consistently for all needle disposal significantly reduces the risk of needlestick injuries among healthcare workers.

A. A patient who has heart failure and is receiving diuretic therapy. B. A patient who has gastroenteritis and is receiving oral fluids. C. A patient who has end-stage kidney disease who will undergo dialysis. D. A patient who has NPO status since midnight for an endoscopy.

Correct Answer is D

Explanation

Rationale for Choice A:

Diuretics promote fluid loss, increasing the risk of fluid volume deficit.

Heart failure can lead to fluid retention, but diuretic therapy is often used to manage this excess fluid.

However, in this case, the patient is receiving diuretic therapy, which suggests that their fluid status is being actively managed.

Therefore, while this patient is at risk for fluid volume deficit, they are not the most likely candidate among the options presented.

Rationale for Choice B:

Gastroenteritis can lead to fluid loss through vomiting and diarrhea.

However, this patient is receiving oral fluids, which helps to replenish lost fluids and electrolytes.

As long as the patient is able to tolerate oral fluids and is not experiencing excessive fluid losses, they are not at significant risk for fluid volume deficit.

Rationale for Choice C:

End-stage kidney disease can impair the kidneys' ability to regulate fluid balance.

However, dialysis is a treatment that helps to remove excess fluid and waste products from the body.

Therefore, while this patient is at risk for fluid volume imbalances, they are receiving treatment to manage this risk.

Rationale for Choice D:

NPO status means that the patient has been instructed to have nothing by mouth. This means that the patient has not been able to consume any fluids since midnight.

Even in the absence of excessive fluid losses, this prolonged period of fluid restriction can lead to dehydration and fluid volume deficit.

Therefore, this patient is the most likely to be experiencing fluid volume deficit among the options presented.

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Anaphylactic shock is a subgroup of which type of shock?

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Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching with a group of newly licensed nurses about preventing needlestick injuries. Which of the following actions should the nurse recommend?

Correct Answer is C

Explanation

A nurse is collecting data about the fluid status of four patients.Which patient should the nurse identify as being at risk for fluid volume deficit?

Correct Answer is D

Explanation

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