LATEST RNSG 2539 SAC MobiLiTy ExAM 2
PERfuSioN, CLoTTiNG, METAboLiSM, &
NuTRiTioN
QuESTioNS AND ANSWERS
Most Tested RNSG 2539 Exam Questions And Answers
THIS EXAM CONTAINS:
QUESTIONS AND ANSWERS
VERIFIED ANSWERS
GUARANTEED PASSING SCORE
,QUESTIONS AND ANSWERS
ECG/EKG strip. ( CORRECT ANSWER ) -P wave=atrial depolarization
QRS wave=ventricular depolarization
T wave=ventricular repolarization
P Wave
The P wave represents atrial depolarization. In a normal EKG, the P-wave precedes the QRS
complex. It looks like a small bump upwards from the baseline. The amplitude is normally 0.05
to 0.25mV (0.5 to 2.5 small boxes). Normal duration is 0.06-0.11 seconds (1.5 to 2.75 small
boxes). The shape of a P-wave is usually smooth and rounded.. ( CORRECT ANSWER ) -P-
wave questions:
Are they present?
Do they occur regularly?
Is there one P-wave for each QRS complex?
Are the P-Waves smooth, rounded, and upright?
Do all P-Waves have similar shapes?
The PR Interval indicates AV conduction time.
In this step you should measure the interval from where the P wave begins until the beginning
of the QRS complex. Calipers, marked paper or counting small boxes methods can be used to
determine PR Intervals. Normally this interval is 0.12 to 0.20 seconds (3 to 5 small boxes) in
adults, longer in elderly people. This interval shortens with increased heart rate.
Also evaluate if PR Intervals are constant or varying across the EKG strip. If they vary,
determine if the variations are a steady lengthening until the point where an expected QRS
does not appear.. ( CORRECT ANSWER ) -PR Interval questions to address:
Does the PR-Interval fall within the norm of *0.12-0.20 seconds?*
Is the PR-Interval constant across the ECG tracing?
The *QRS complex* indicates ventricular depolarization. Depolarization triggers contraction
of the ventricles.
Because of the larger tissue mass, the QRS complex is larger than the P wave. While the
prototypical QRS complex consists of three wave components, one or two of these components
may be missing.
, In this step, measure the QRS interval from the end of the PR interval to the end of the S wave.
Use calipers, marking paper or by counting small boxes. Normally this interval is 0.06 to 0.12
seconds (1.5 to 3 boxes).. ( CORRECT ANSWER ) -QRS questions:
Does the QRS interval fall within the range of *0.06-0.12 seconds?*
Are the QRS complexes similar in appearance across the ECG tracing?
The *T wave* indicates the repolarization of the ventricles. It is a slightly asymmetrical
waveform that follows (after a pause), the QRS complex. Take note of T waves that have a
downward (negative) deflection or of T waves with tall, pointed peaks.
The U-wave is a small upright, rounded bump. When observed, it follows the T-wave.. (
CORRECT ANSWER ) -
The *QT interval* represents the time of ventricular activity including both depolarization
and repolarization.
It is measured from the beginning of the QRS complex to the end of the T wave. Normally, the
QT interval is 0.36 to 0.44 seconds (9-11 boxes). The QT interval will vary with patient
gender, age and heart rate. Another guideline is that normal QT Intervals is less than half of
the R-R Interval for heart rates below 100 bpm.. ( CORRECT ANSWER ) -
The *ST segment* represents the early part of ventricular repolarization.
The ST segment is the line that from the end of the QRS complex to beginning of the T wave.
Normally the ST segment is flat relative to the baseline.. ( CORRECT ANSWER ) -
Determining Normal vs. Abnormal Atrial and Ventricular Rhythm. ( CORRECT ANSWER ) -
For ventricular rhythms, examine the R to R intervals on the EKG strip. Calipers or paper
marks can be used to fix the distance for one R-R interval and then this distance can be
compared to other R-R pairs.
Are they regular, meaning that each heart beat's R-R interval is equal? Small variations of up
to 10% are considered equal. Is the rhythm regularly irregular? For example is there a pattern,
such as increasing R-R durations? Or perhaps groups of similar intervals as illustrated on the
right? Or are R-R intervals completely irregular?
For atrial rhythm, observe the P-P intervals. Are they regular (minor variations can be caused
by the breath cycle)? If P-P intervals are irregular, is there a pattern?
The simplest method to determine heart rate on an ECG/EKG strip. ( CORRECT ANSWER )
-Count the number of QRS complexes over a 6 second interval. Multiply by 10 to determine
heart rate. This method works well for both regular and irregular rhythms.
ECG/EKG strip measurements. ( CORRECT ANSWER ) -
Atrial Flutter. ( CORRECT ANSWER ) -P Waves are not detectable; sawtooth pattern in-
between QRS complexes.
Myocardial Infarction: Pathophysiology. ( CORRECT ANSWER ) --One or more coronary
arteries become occluded.
PERfuSioN, CLoTTiNG, METAboLiSM, &
NuTRiTioN
QuESTioNS AND ANSWERS
Most Tested RNSG 2539 Exam Questions And Answers
THIS EXAM CONTAINS:
QUESTIONS AND ANSWERS
VERIFIED ANSWERS
GUARANTEED PASSING SCORE
,QUESTIONS AND ANSWERS
ECG/EKG strip. ( CORRECT ANSWER ) -P wave=atrial depolarization
QRS wave=ventricular depolarization
T wave=ventricular repolarization
P Wave
The P wave represents atrial depolarization. In a normal EKG, the P-wave precedes the QRS
complex. It looks like a small bump upwards from the baseline. The amplitude is normally 0.05
to 0.25mV (0.5 to 2.5 small boxes). Normal duration is 0.06-0.11 seconds (1.5 to 2.75 small
boxes). The shape of a P-wave is usually smooth and rounded.. ( CORRECT ANSWER ) -P-
wave questions:
Are they present?
Do they occur regularly?
Is there one P-wave for each QRS complex?
Are the P-Waves smooth, rounded, and upright?
Do all P-Waves have similar shapes?
The PR Interval indicates AV conduction time.
In this step you should measure the interval from where the P wave begins until the beginning
of the QRS complex. Calipers, marked paper or counting small boxes methods can be used to
determine PR Intervals. Normally this interval is 0.12 to 0.20 seconds (3 to 5 small boxes) in
adults, longer in elderly people. This interval shortens with increased heart rate.
Also evaluate if PR Intervals are constant or varying across the EKG strip. If they vary,
determine if the variations are a steady lengthening until the point where an expected QRS
does not appear.. ( CORRECT ANSWER ) -PR Interval questions to address:
Does the PR-Interval fall within the norm of *0.12-0.20 seconds?*
Is the PR-Interval constant across the ECG tracing?
The *QRS complex* indicates ventricular depolarization. Depolarization triggers contraction
of the ventricles.
Because of the larger tissue mass, the QRS complex is larger than the P wave. While the
prototypical QRS complex consists of three wave components, one or two of these components
may be missing.
, In this step, measure the QRS interval from the end of the PR interval to the end of the S wave.
Use calipers, marking paper or by counting small boxes. Normally this interval is 0.06 to 0.12
seconds (1.5 to 3 boxes).. ( CORRECT ANSWER ) -QRS questions:
Does the QRS interval fall within the range of *0.06-0.12 seconds?*
Are the QRS complexes similar in appearance across the ECG tracing?
The *T wave* indicates the repolarization of the ventricles. It is a slightly asymmetrical
waveform that follows (after a pause), the QRS complex. Take note of T waves that have a
downward (negative) deflection or of T waves with tall, pointed peaks.
The U-wave is a small upright, rounded bump. When observed, it follows the T-wave.. (
CORRECT ANSWER ) -
The *QT interval* represents the time of ventricular activity including both depolarization
and repolarization.
It is measured from the beginning of the QRS complex to the end of the T wave. Normally, the
QT interval is 0.36 to 0.44 seconds (9-11 boxes). The QT interval will vary with patient
gender, age and heart rate. Another guideline is that normal QT Intervals is less than half of
the R-R Interval for heart rates below 100 bpm.. ( CORRECT ANSWER ) -
The *ST segment* represents the early part of ventricular repolarization.
The ST segment is the line that from the end of the QRS complex to beginning of the T wave.
Normally the ST segment is flat relative to the baseline.. ( CORRECT ANSWER ) -
Determining Normal vs. Abnormal Atrial and Ventricular Rhythm. ( CORRECT ANSWER ) -
For ventricular rhythms, examine the R to R intervals on the EKG strip. Calipers or paper
marks can be used to fix the distance for one R-R interval and then this distance can be
compared to other R-R pairs.
Are they regular, meaning that each heart beat's R-R interval is equal? Small variations of up
to 10% are considered equal. Is the rhythm regularly irregular? For example is there a pattern,
such as increasing R-R durations? Or perhaps groups of similar intervals as illustrated on the
right? Or are R-R intervals completely irregular?
For atrial rhythm, observe the P-P intervals. Are they regular (minor variations can be caused
by the breath cycle)? If P-P intervals are irregular, is there a pattern?
The simplest method to determine heart rate on an ECG/EKG strip. ( CORRECT ANSWER )
-Count the number of QRS complexes over a 6 second interval. Multiply by 10 to determine
heart rate. This method works well for both regular and irregular rhythms.
ECG/EKG strip measurements. ( CORRECT ANSWER ) -
Atrial Flutter. ( CORRECT ANSWER ) -P Waves are not detectable; sawtooth pattern in-
between QRS complexes.
Myocardial Infarction: Pathophysiology. ( CORRECT ANSWER ) --One or more coronary
arteries become occluded.
