A patient's heart rate increased from 94 to 164 beats/min. What will the nurse expect as a result?
Decrease in hemoglobin level
Increase in diastolic filling time
Increase in stroke volume
Decrease in cardiac output
The Correct Answer is D
A. An increase in heart rate does not directly affect hemoglobin levels; this option is incorrect.
B. A higher heart rate decreases diastolic filling time, as there is less time for the heart to fill between beats, which can lead to reduced stroke volume.
C. An increased heart rate does not inherently increase stroke volume; in fact, at very high rates, stroke volume can decrease due to reduced filling time.
D. The significant increase in heart rate to 164 beats/min can lead to decreased cardiac output due to compromised diastolic filling and reduced stroke volume.
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Correct Answer is C
Explanation
A. Increased cholesterol levels are not directly related to garlic intake or the effects of warfarin.
B. Distended jugular veins may indicate fluid overload or heart failure but are not a direct concern related to warfarin and garlic interaction.
C. Garlic can enhance the anticoagulant effect of warfarin, increasing the risk of bleeding; therefore, monitoring for signs of bleeding is crucial.
D. Angina is not a direct consequence of the interaction between garlic and warfarin and does not specifically relate to the assessment for this patient.
Correct Answer is C
Explanation
A. Atelectasis can occur in anyone, not just those with chronic conditions; this statement is incorrect.
B. While hyperventilation may temporarily open alveoli, it is not a preventative measure for atelectasis.
C. Breathing exercises, such as incentive spirometry or deep breathing, are effective in preventing atelectasis by promoting lung expansion and alveolar ventilation.
D. A chest tube is typically used to remove air or fluid from the pleural space, not for the treatment of atelectasis, which is often managed with respiratory therapies.