A nurse is assessing a client suspected of having cardiac tamponade. Which of the following findings indicates the presence of pulsus paradoxus?
A decrease in systolic blood pressure greater than 10 mm Hg during inspiration
A decrease in heart rate greater than 10/min when lying down
An increase in diastolic blood pressure greater than 10 mm Hg during inspiration
An increase in heart rate greater than 20/min when standing
The Correct Answer is A
A. A decrease in systolic blood pressure greater than 10 mm Hg during inspiration: Pulsus paradoxus is an exaggerated decrease in systolic blood pressure during inspiration. Normally, there is a slight decrease in systolic blood pressure during inspiration due to increased intrathoracic pressure and decreased venous return to the heart. However, in conditions such as cardiac tamponade or severe asthma exacerbations, the decrease in systolic blood pressure during inspiration is more pronounced (>10 mm Hg), indicating impaired cardiac output and decreased left ventricular filling during inspiration.
B. A decrease in heart rate greater than 10/min when lying down: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when lying down.
C. An increase in diastolic blood pressure greater than 10 mm Hg during inspiration: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus is characterized by an exaggerated decrease in systolic blood pressure during inspiration, not changes in diastolic blood pressure.
D. An increase in heart rate greater than 20/min when standing: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when standing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D"]
Explanation
All of the following should be included in the teaching:
A. Living a sedentary lifestyle: Sedentary behavior, characterized by physical inactivity, is a risk factor for various cardiovascular conditions, including atrial fibrillation. Regular exercise is important for maintaining heart health and reducing the risk of atrial fibrillation.
B. Family history of atrial fibrillation: A family history of atrial fibrillation increases an individual's risk of developing the condition. Genetic factors play a role in predisposing individuals to atrial fibrillation, and having a close relative with the condition can elevate one's risk.
C. History of thyroid disease: Thyroid disorders, particularly hyperthyroidism (overactive thyroid), are associated with an increased risk of atrial fibrillation. Thyroid hormones influence heart rate and rhythm, and imbalances can predispose individuals to atrial fibrillation.
D. Recent influenza infection: Infections, particularly respiratory infections such as influenza, can trigger episodes of atrial fibrillation in susceptible individuals. The inflammatory response and physiological stress associated with infections can disrupt normal heart rhythm and precipitate atrial fibrillation episodes.
Correct Answer is B
Explanation
A. Severe myopia: Severe myopia, or nearsightedness, is not a typical manifestation of Meniere's disease. Meniere's disease primarily affects the inner ear and is characterized by symptoms related to balance and hearing rather than vision.
B. Vertigo: Meniere's disease is a disorder of the inner ear that causes episodes of vertigo, which is a sensation of spinning or dizziness. Vertigo is a hallmark symptom of Meniere's disease and is often accompanied by nausea, vomiting, and a feeling of fullness or pressure in the affected ear.
C. Anosmia: Anosmia refers to a loss of the sense of smell and is not typically associated with Meniere's disease. Meniere's disease primarily affects the vestibular system (balance) and auditory system (hearing) rather than the sense of smell.
D. Photopsia: Photopsia refers to the perception of flashes of light in the visual field and is not a typical manifestation of Meniere's disease. Meniere's disease primarily affects the inner ear and is not directly related to visual disturbances.
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