A nurse is planning care for a client who has increased intracranial pressure. The nurse should understand that enteral nutrition should begin within 24 to 48 hr to help prevent which of the following complications?
Myocardial infarction
Bacterial translocation
Pulmonary embolus
Deep vein thrombosis
The Correct Answer is B
A. Myocardial infarction: Enteral nutrition initiation within 24 to 48 hours is not directly associated with preventing myocardial infarction. While proper nutrition is important for overall cardiovascular health, the timing of enteral nutrition initiation primarily focuses on preventing complications related to increased intracranial pressure (ICP).
B. Bacterial translocation: Initiating enteral nutrition within 24 to 48 hours in clients with increased intracranial pressure helps prevent complications such as bacterial translocation. Bacterial translocation refers to the passage of bacteria from the gastrointestinal tract into the bloodstream and systemic circulation. Delayed initiation of enteral nutrition can lead to intestinal mucosal breakdown and increased intestinal permeability, facilitating bacterial translocation. Early enteral nutrition helps maintain intestinal mucosal integrity, reduces gut bacterial overgrowth, and decreases the risk of bacterial translocation, thereby lowering the risk of infectious complications.
C. Pulmonary embolus: Initiating enteral nutrition within 24 to 48 hours is not directly associated with preventing pulmonary embolus. Pulmonary embolism is a complication characterized by the obstruction of pulmonary arteries by blood clots, typically originating from deep vein thrombosis. Prevention of pulmonary embolus involves measures such as early mobilization, pharmacological prophylaxis, and mechanical compression devices to prevent venous stasis and thrombus formation.
D. Deep vein thrombosis: Initiating enteral nutrition within 24 to 48 hours is not directly associated with preventing deep vein thrombosis. Deep vein thrombosis is a complication characterized by the formation of blood clots within deep veins, commonly in the lower extremities. Prevention of deep vein thrombosis involves measures such as early mobilization, pharmacological prophylaxis, and mechanical compression devices to prevent venous stasis and thrombus formation.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Changes to social cognition and challenges to inhibitory control: Neurologic injuries such as increased intracranial pressure can lead to changes in social cognition, including difficulties in understanding social cues, interpreting emotions, and maintaining appropriate social interactions. Additionally, inhibitory control may be impaired, leading to impulsivity and disinhibition in behavior.
B. Improved mood stability and improved temper control: Neurologic injuries are more likely to result in mood instability and difficulties with temper control rather than improvement in these areas. Changes in mood, including irritability, anxiety, depression, and emotional lability, are common psychosocial consequences of neurologic injuries.
C. Improved rehabilitation outcomes and temporary behavior changes: While rehabilitation efforts may lead to improvement in functional abilities over time, neurologic injuries often result in persistent psychosocial challenges rather than improved outcomes. Temporary behavior changes may occur during the recovery process, but individuals may continue to experience long-term psychosocial sequelae.
D. Sense of purpose, improved motivation, and stable relationships: Neurologic injuries can significantly impact an individual's sense of purpose, motivation, and relationships. Clients may struggle to find meaning and motivation in their lives following a neurologic injury, and relationships may be strained due to changes in behavior, cognition, and communication.
Correct Answer is A
Explanation
A. The aortic and mitral valves are the most commonly replaced valves: This statement is accurate. The aortic and mitral valves are indeed the most commonly replaced valves in cardiac valve replacement surgeries. Aortic valve replacement is commonly performed for conditions such as aortic stenosis or regurgitation, while mitral valve replacement is often indicated for mitral regurgitation or stenosis.
B. Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle: This statement is incorrect. Mitral valve insufficiency, also known as mitral regurgitation, occurs during the systolic phase of the cardiac cycle. It involves the backflow of blood from the left ventricle into the left atrium during ventricular systole, leading to volume overload of the left atrium and potentially causing symptoms such as dyspnea and fatigue.
C. Inadequate closure of the tricuspid valve causes overload in the left ventricle: This statement is incorrect. Inadequate closure of the tricuspid valve leads to regurgitation of blood from the right ventricle back into the right atrium during ventricular systole. This condition, known as tricuspid regurgitation, causes volume overload in the right atrium and ventricle, rather than overload in the left ventricle.
D. Aortic stenosis increases right ventricular systolic pressure and decreases afterload: This statement is partially correct. Aortic stenosis indeed increases left ventricular systolic pressure and decreases afterload, not right ventricular pressure. The increased afterload on the left ventricle can lead to left ventricular hypertrophy and eventually heart failure. However, aortic stenosis does not directly affect right ventricular systolic pressure.
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