Seminar Unit 3
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I attended the seminar.
1. Which neurotransmitter is primarily responsible for contraction of the entire muscle cell layer
thus resulting in decrease vessel lumen radius?
Norepinephrine
2. What does an elevated C-reactive protein (CRP) in a patient mean?
Inflammation in the body is usually indicated by a patient's high C-reactive protein (CRP) level.
The liver produces CRP as a reaction to inflammation, infection, or tissue damage. It is regarded
as an indiscriminate indicator of inflammation,
3. What is the role of Propranolol in patient with obstructive hypertophic cardiomyopathy?
One class of drug known as a beta-blocker is propranolol. Patients with obstructive hypertrophic
cardiomyopathy are frequently treated with it. In order to treat individuals with obstructive
hypertrophic cardiomyopathy, propranolol is essential since it lowers heart rate, decreases
contractility, lowers oxygen demand, relieves symptoms, and avoids arrhythmia. But it's crucial
to remember that using propranolol—or any medication—should be done so under a doctor's
supervision because it might not be appropriate for every patient and can have negative side
effects.
.4. What is the importance of potassium in the normal electrical function of the client's heart?
Potassium is essential for the heart's regular electrical activity. This is due to the fact that it is
essential for creating and preserving the heart muscle cells' resting membrane potential. The
amounts of potassium ions within and outside the cell largely determine the resting membrane
potential, which is the electrical charge differential across the cell membrane while the cell is at
rest.The inner of heart muscle cells has a lower charge than the outside while they are at rest.
This is because there are more potassium ions inside the cell than there are outside. Potassium
ions are expelled from the cell during cardiac contraction, which increases the cell's internal
potential and triggers an action.
5. What would be represented on ECG with a patient with a bundle branch block?
An anomaly in the heart's conduction system known as a bundle branch block (BBB) disrupts the
electrical impulses that pass through the bundle branches and ultimately reach the ventricles.
Right bundle branch block (RBBB) and left bundle branch block (LBBB) are the two varieties of
bundle branch blocks.
On an electrocardiogram (ECG), a patient with a bundle branch block may exhibit the following
characteristics:
Right Bundle Branch Block (RBBB):
QRS Complex: The QRS complex, which represents ventricular depolarization, is wider than
normal (>0.12 seconds) due to delayed activation of the right ventricle.
RSR' Pattern: In leads V1 and V2, there is a characteristic RSR' pattern, where the initial R wave is
followed by a wide S wave and then a second R wave (R' wave).
ST-T Changes: There may be ST-T wave changes, such as ST segment depression or T wave
inversion, in leads V1 and V2.
Left Bundle Branch Block
QRS Complex: The QRS complex is wider than normal (>0.12 seconds) due to delayed activation
of the left ventricle.
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