How should the nurse identify the rhythm shown in the diagram?
ventricular tachycardia
asystole
normal sinus rhythm
ventricular fibrillation
The Correct Answer is A
A. Ventricular tachycardia: Ventricular tachycardia (VT) is identified by a regular, fast rhythm with wide QRS complexes, typically without visible P waves. This rhythm often appears as consecutive, large, uniform waves, which is consistent with what is seen in the diagram.
B. Asystole: Asystole is characterized by a flat line, indicating no electrical activity, which is not present in this strip.
C. Normal sinus rhythm: Normal sinus rhythm would show identifiable P waves, a normal QRS complex, and a regular rate, which are not observed here.
D. Ventricular fibrillation: Ventricular fibrillation appears as chaotic, irregular waveforms with no clear QRS complexes or organization, which does not match the rhythm shown.
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Correct Answer is B
Explanation
A. Observing for facial symmetry assesses cranial nerves VII (facial nerve), not cranial nerve III.
B. Cranial nerve III (oculomotor nerve) is responsible for eye movement and pupillary response, making checking the pupillary response to light the correct action.
C. Testing visual acuity primarily assesses cranial nerve II (optic nerve), not cranial nerve III.
D. Eliciting the gag reflex is associated with cranial nerves IX (glossopharyngeal) and X (vagus), not cranial nerve III.
Correct Answer is B
Explanation
A. Obesity is a modifiable risk factor, as it can be addressed through lifestyle changes such as diet and exercise.
B. Race is a nonmodifiable risk factor; certain races may have a higher risk of stroke due to genetic and environmental factors.
C. History of smoking is a modifiable risk factor because individuals can choose to quit smoking to reduce their risk of stroke.
D. History of hypertension is also a modifiable risk factor; while having high blood pressure increases the risk of stroke, it can be managed with lifestyle changes and medications.