How should the nurse interpret the rhythm depicted in the image?
normal sinus rhythm
sinus bradycardia
asystole
sinus tachycardia
The Correct Answer is C
A. This would show a regular rhythm with a consistent rate (60-100 bpm) and clear P waves before each QRS complex, which is not present in asystole.
B. This indicates a slow heart rate (below 60 bpm) but would still display P waves and QRS complexes; asystole shows no electrical activity.
C. This is the correct interpretation as it represents a flatline on the ECG, indicating no electrical activity in the heart.
D. This would show a rapid heart rate (above 100 bpm) with present P waves, which is not the case in asystole.
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Correct Answer is B
Explanation
A. Assessing the pedal pulses does not provide relevant information about the irregularity of the radial pulse.
B. Assessing the apical pulse for a full minute is appropriate in this situation, as it provides a more accurate measurement of the heart rate and rhythm, especially when the radial pulse is irregular.
C. Assessing the popliteal pulses with a Doppler device is not necessary and does not directly address the irregular radial pulse.
D. While a pulse oximeter can provide information about oxygen saturation, it does not assess heart rate or rhythm.
Correct Answer is D
Explanation
A. A pustule is a small elevation of the skin that contains pus, typically smaller than 0.5 cm.
B. A macule is a flat, discolored area of skin that is less than 0.5 cm in diameter, so it does not fit the description of elevated lesions larger than 0.5 cm.
C. A papule is an elevated, solid lesion that is less than 0.5 cm in diameter; lesions larger than this would not be classified as papules.
D. A patch is defined as a flat, non-palpable lesion larger than 0.5 cm, and psoriasis can present as patches. Thus, the lesions described fit this classification.