Which assessment finding indicates that the patient is at high risk for development of pulmonary embolism?
The patient’s last bowel movement was before surgery, 4 days ago.
The patient has refused enoxaparin injections after surgery.
The patient’s platelet count was 45,000/mm^3 this morning.
The patient required transfusion of two units of packed red blood cells.
The Correct Answer is B
Choice A rationale:
A patient's last bowel movement being 4 days ago does not directly increase their risk of pulmonary embolism (PE). While constipation can be a risk factor for deep vein thrombosis (DVT), which can lead to PE, it is not a significant risk factor on its own.
It's important to assess for other risk factors for DVT, such as immobility, recent surgery, or a history of blood clots, in conjunction with constipation.
Choice C rationale:
A platelet count of 45,000/mm^3 is low (thrombocytopenia), but it does not directly increase the risk of PE.
In fact, a low platelet count can sometimes hinder clot formation. However, it's important to monitor patients with thrombocytopenia for bleeding risks, as they may be more prone to bleeding complications.
Choice D rationale:
While receiving a transfusion of two units of packed red blood cells can increase blood viscosity, which could theoretically slightly increase the risk of PE, it is not a major risk factor.
Patients who receive transfusions are often already at an elevated risk of PE due to other underlying conditions or surgeries. It's essential to assess for other risk factors in these patients.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Directly addresses the primary goal of preventing perioperative positioning injury: The absence of redness or breakdown in the skin is the most definitive indicator that the patient has not sustained any skin or tissue damage as a result of prolonged immobilization during surgery.
Focuses on the patient outcome, not just interventions: While interventions such as padding bony prominences and assessing skin prior to surgery are important, they are means to achieve the ultimate goal of preventing skin injury. This outcome statement directly measures the success of those interventions.
Aligns with best practices for pressure injury prevention: The National Pressure Injury Advisory Panel (NPIAP) and other expert organizations emphasize the importance of setting goals that focus on maintaining skin integrity and preventing injury.
Choice B rationale:
Addresses a crucial aspect of patient care, but not directly related to positioning injury: Maintaining privacy and dignity is essential for all patients, but it does not specifically address the risk of skin breakdown from prolonged immobilization.
Not a measurable outcome for positioning injury: It is difficult to objectively assess whether a patient's privacy and dignity have been maintained, making it less suitable as an outcome statement for this particular diagnosis.
Choice C rationale:
Describes an important intervention, but not a patient outcome: Padding bony prominences is a key strategy to reduce pressure and prevent skin injury. However, it is an action taken by the nurse, not a measurable outcome that reflects the patient's status.
Does not guarantee prevention of injury: Even with appropriate padding, patients can still develop pressure injuries if other risk factors are present or if repositioning is not performed adequately.
Choice D rationale:
Represents an essential assessment step, but not a final outcome: Assessing the skin prior to surgery is important for identifying areas that are at increased risk of breakdown. However, it is a preliminary step in the prevention process, not the ultimate goal.
Does not ensure prevention of injury: Identifying at-risk areas is helpful for targeting interventions, but it does not guarantee that skin breakdown will not occur.
Correct Answer is B
Explanation
Choice A rationale:
Secondary erythema refers to redness that develops after the initial injury or insult. It's not the most accurate term to describe an area that doesn't blanch, as blanching specifically assesses for the presence of blood in the tissue. Secondary erythema can be blanchable or nonblanchable, depending on the underlying cause.
Choice C rationale:
Blanchable hyperemia is a reddening of the skin that blanches (turns lighter) when pressed. This indicates that blood is still flowing to the area and that the tissue is not damaged. It's not the correct term for an area that doesn't blanch.
Choice D rationale:
Reactive hyperemia is a temporary increase in blood flow to an area that has been deprived of blood flow. It's often seen after pressure is relieved from a body part. While reactive hyperemia can cause redness, this redness typically blanches when pressed.
Choice B rationale:
Nonblanchable erythema is the most accurate term to describe an area of redness that does not turn lighter in color when pressed with a finger. This indicates that blood is not flowing to the area and that the tissue is likely damaged. Nonblanchable erythema is a significant finding because it can be a sign of a pressure injury (also known as a bedsore or pressure ulcer).
Key points about nonblanchable erythema:
It's a sign of impaired blood flow to the tissue. It's a potential indicator of a pressure injury.
It requires prompt assessment and intervention to prevent further tissue damage.
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