Which of the following clinical manifestations is NOT considered part of Beck's triad (classic indications of cardiac tamponade)?
muffled heart tones
marked hypotension
distended jugular veins
widening pulse pressure
The Correct Answer is D
Beck's triad consists of three classic clinical manifestations that are suggestive of cardiac tamponade, which is the compression of the heart by accumulated fluid or blood within the pericardial sac. The three components of Beck's triad include:
A. Muffled heart tones in (option A) are incorrect because Cardiac tamponade can dampen or muffle heart sounds due to the presence of fluid or blood around the heart, which can impair sound transmission.
B. Marked hypotension in (option B) is incorrect because Cardiac tamponade can cause decreased cardiac output, leading to hypotension, which is characterized by low blood pressure.
C. Distended jugular veins in (option C) is incorrect because Elevated venous pressure resulting from impaired filling and elevated right-sided heart pressures can lead to jugular vein distension, which is commonly seen in cardiac tamponade.
However, widening pulse pressure (the difference between systolic and diastolic blood pressure) is not typically part of Beck's triad. Widening pulse pressure is associated with her conditions such as aortic regurgitation, hyperthyroidism, or conditions involving increased stroke volume, rather than cardiac tamponade specifically.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The increased respiratory rate and pulse rate can be indicators of physiological changes or potential complications in the patient's condition. These changes may suggest alterations in tissue perfusion or other underlying issues that require further assessment.
Assessing the patient's tissue perfusion includes evaluating additional vital signs, such as blood pressure, oxygen saturation, and capillary refill time. Assessing skin color, temperature, and moisture, as well as peripheral pulses, can also provide important information regarding tissue perfusion.
B. Pain medication (option B) is incorrect because the increased respiratory and pulse rates could also indicate other factors that require assessment before administering pain medication.
C. Documenting the findings in the patient's chart (option C) is incorrect because it should not be the primary action at this point. Assessing the patient's condition and determining appropriate interventions take priority.
D. Increasing the rate of the patient's IV infusion (option D) is incorrect because may not be the most appropriate action without further assessment. The patient's increased respiratory and pulse rates may not necessarily be related to hydration status, and it is important to assess the patient comprehensively before making changes to the IV infusion rate.
Therefore, the best action by the nurse in this situation is to further assess the patient's tissue perfusion to gather more information and determine the appropriate course of action.
Correct Answer is A
Explanation
Premature ventricular contractions (PVCs) are abnormal heart rhythms originating from the ventricles. They can be triggered by various factors, including irritation or stimulation of the airway during suctioning.
In this situation, the priority is to ensure adequate oxygenation and ventilation for the patient. Stopping the suctioning procedure and providing ventilatory support with 100% oxygen helps maintain oxygen levels and minimizes further cardiac dysrhythmias.
B. Check the patient's potassium level in (option B) is incorrect because While electrolyte imbalances, including low potassium levels (hypokalemia), can contribute to cardiac dysrhythmias, checking the potassium level is not the immediate priority when PVCs occur during suctioning.
C. Give prescribed PRN antidysrhythmic medications in (option C) is incorrect because: Administering antidysrhythmic medications without further assessment or evaluation may not be appropriate in this situation.
D. Decrease the suction pressure to 80 mm Hg in (option D) is incorrect because: While adjusting suction pressure may help prevent further irritation, it is not the initial priority when PVCs are present during suctioning.
E. Documenting the dysrhythmia in the patient's chart in (option E) is incorrect because: Documentation is important but should not be the initial action when a patient experiences PVCs during suctioning. Patient safety and immediate intervention take precedence.
Therefore, when PVCs occur during suctioning, the nurse should stop the procedure, provide ventilatory support with 100% oxygen, and assess the patient's response to intervention.

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