Therapeutic Care of Angina Pectoris, Myocardial Infarction, and Cerebrovascular Accident Flashcards
Myocardial Ischemia
Angina Pectoris
Defined as acute chest pain caused by myocardial ischemia
Symptoms include crushing, painful feeling in chest (in males, pain may be referred to left arm
Silent – myocardial ischemia
occurs but no pain, asymptomatic; high risk for acute MI
Unstable
unpredictable, occurs at rest
Angina of effort
occurs when patient over-exerts during an activity, increasing oxygen demand
Nutritional Therapy of Angina
Large meals should be avoided because they __Increase___ the work-load of the heart. Plus, blood is diverted to the digestive system and reduced to the coronary arteries.
If a large meal is eaten, should lie down and rest for 1 to 2 hours
Quit smoking as it causes vasoconstriction__ and an increase in HR
Limit salt and saturated fats. Maintain ideal body weight. Why is weight important?
Physiotherapy
A regular exercise program that conditions but does not overstress the heart.
Walking on a flat surface 30 minutes a day 5 days a week is recommended.
Nitro tablets may be used prophylactically before physical exertion or sexual intercourse.
prophylactically
prevention of
Mental Health
Counseling should be provided. Why?
to help you be calmer
Oxygen Therapy
During an acute attack supplemental oxygen may be necessary.
Pharmacological Management of Angina Pectoris
Number on goal: reduce the frequency and the intensity of the attacks
Terminate anginal episodes by _______dialate____coronary arteries to ___decrease_ O2 needs
Prevent anginal episodes by reducing ____cardiac ____ _____workload____ and O2 demand
Drug Classes for Angina Pectoris – Organic Nitrates
- Can cause flusing and headache
Obtain complete health history including allergies and drug history, characteristics of angina, history of cardiac disorders
Assess vital signs and 12 lead ECG
Obtain lab tests including cardiac enzymes, complete blood count (CBC), kidney and liver function tests
Assess if client has taken phosphodiesterase -5 inhibitors (such as sildenafil) within last 24 hours why?
Nitro glycerin patches are used for the _______ of angina.
How are they administered?
Prevention if Angina
- Switch sites
- ## Needs to be on clean dry skin
Other Drugs in the treatment of Angina
Beta Blockers – relieve angina by decreasing the oxygen demands of the heart. Often considered first line drugs for chronic angina
Calcium Channel Blockers- relieve angina by dilating coronary vessels and reducing workload of the heart.
These meds will be discussed in more detail in hypertension.
Prototype Drug Atenolol (Tenormin)
Therapeutic effects and uses
Stable angina, MI
Hypertension
Mechanism of action
Blocks beta1 receptors in heart causing a reduction in HR, and contractility which decreases CO and blood pressure
O2 demand is decreased, relieving angi
At high doses, can block beta2 receptors and exacerbate asthma by promoting____________
by promoting bronchoconstriction
Prototype Drug Atenolol (Tenormin) (2 of 2)
Adverse effects
Bradycardia, hypotension
Fatigue, weakness
Nausea, vomiting
At high doses, can block beta2 receptors and exacerbate asthma by promoting__________________
Prototype Drug Metoprolol (Lopressor Adverse effects
Masks hypoglycemia
HTN
GI effects
Drug Classes for Angina Pectoris – Calcium Channel Blockers (1 of 2)