A nurse is interpreting the ECG strip of a client who has bradycardia. Which cardiac components should the nurse identify as the role of the P wave?
Early ventricular repolarization
Atrial depolarization
Slow repolarization of ventricular Purkinje fibers
Ventricular depolarization
The Correct Answer is B
A. Early ventricular repolarization is represented by the T wave, not the P wave.
B. The P wave represents atrial depolarization, which is the electrical activity that triggers the contraction of the atria.
C. Slow repolarization of ventricular Purkinje fibers is represented by the T wave, not the P wave.
D. Ventricular depolarization is represented by the QRS complex, not the P wave.
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Correct Answer is C
Explanation
A. Response to verbal stimuli does not directly assess the function of cranial nerves III, IV, and VI.
B. Affect, feelings, or emotions are related to the assessment of other neurological functions and do not evaluate the ocular cranial nerves specifically.
C. Eye movements are the primary function of cranial nerves III (oculomotor), IV (trochlear), and VI (abducens), which control eye movement and provide essential information about their function.
D. Insight, judgment, and planning relate more to cognitive function and do not directly assess the function of the cranial nerves in question.
Correct Answer is ["A","B"]
Explanation
A. Bronchovesicular sounds are normal lung sounds that are typically heard over the mainstem bronchi and are expected during auscultation.
B. Bronchial sounds are also normal and are typically heard over the trachea; they are expected lung sounds.
C. Dullness is not a lung sound but rather a descriptor of percussion notes, typically indicating fluid or solid mass in the lungs.
D. Flatness is also not a normal lung sound but refers to a percussion note that can suggest the presence of fluid or a solid mass.