PrepU Cardiovascular Disorders Flashcards
The nurse is caring for a client who is scheduled for a transesophageal echocardiogram. What is the priority nursing intervention after procedure?
Elevate bed 45 degrees and keep NPO until return of gag reflex.
-This help so avoid aspiration
Location of pulse assessment for a client with cardiovascular disorder?
auscultation at the apex
- a second nurse will palpate and count radial pulse for a full minute. Difference = pulse deficit.
What does the pulse quality refer to?
palpated volume
—- —– is the pattern of the pulsations and pauses between them
pulse rhythm
The student nurse is preparing a teaching plan for a client being discharged status post MI. What should the nurse include in the teaching plan (SATA)
A. need for careful monitoring for cardiac symptoms
B. need for carefully regulated exercise
C. need for dietary modifications
D. need for early resumption of prediagnosis activity
E. need for increased fluid intake
A, B, C.
-Dietary mod., exercise, weight loss, and careful monitoring are important strategies for managing three major cardiovascular risk factors: hyperlipidemia, hypertension, and diabetes.
-No need for fluid increase and activity should be slowly and deliberately increased
When straining during defecation, the patient bears down (the Valsalva maneuver), which momentarily increases pressure on the baroreceptors. What nerve response does this trigger?
Vagal response = heart rate slows and results in syncope in some patients.
Straining during urination can also have the same effect.
What will a pt. experience with an abdominal aortic aneurysm?
Back or abdominal pain.
Urine output is an important indicator of cardiac function. What does low urine output mean?
Inability of the heart to generate enough cardiac output, leading to reduced blood flow to the brain and other vital organs such as the kidneys.
What does high urine output indicate?
Endocrine problem
The nurse is calculating a cardiac client’s pulse pressure. If the client’s blood pressure is 122/76 mm Hg, what is the client’s pulse pressure?
46 mm Hg
- difference between the systolic and diastolic pressure
What is enhanced by circulating catecholamines, sympathetic neuronal activity, and certain medications, like Lanoxin?
Contractility = increased stroke volume
What indicates chronic hemoglobin desaturation (decreased oxygen supply) and is associated with congenital heart disease?
Clubbing of the fingers and toes
What should a nurse assess in a ct. with clubbing of fingers and toes?
O2 sat, intervene as directed
What medication class decreases automaticity?
Beta-blockers
EX: metoprolol
May receive prior to a scan to control heart rate and rhythm
The exchange of ions creates a positively charged intracellular space and a negatively charged extracellular space that characterizes the period known as —–
depolarization
Once depolarization is complete, the exchange of ions reverts to its resting state— a period known as ?
repolarization
The repeated cycle of depolarization and repolarization is called —- —- —–
cardiac action potential
A ct.’s declining cardiac status has been attributed to decreased cardiac action potential. Interventions should be aimed at restoring what aspect of cardiac physiology?
The cycle of depolarization and repolarization
Actions to complete when applying cardiac electrodes in preparation for an ECG on a male client?
1: clip (do not shave) hair from around the electrode site
2. if client is diaphoretic (sweaty), apply a small amount of benzoin to the skin, avoiding area under the center of the electrode
3. debride the skin surface of dead cells with soap and water and dry well
4. change the electrodes every 24 to 48 hours (or as recommended by manufacturer
5. examine skin for irritation and apply the electrodes to dif. locations.
What should be expressed to the patient when auscultating heart sounds?
Nurse will be listening to different areas of the chest and may listen for a long time, but that does not mean that anything abnormal is heard.
After a physical exam, the provider diagnosed a patient with a grade 4 heart murmur. During assessment the nurse expects to hear a murmur that is:
Loud and may be associated with a thrill sound similar to (a purring cat).
What instruction should the nurse include in discharge instructions for a ct. who underwent a left groin cardiac catheterization 8 hours ago?
-Do not bend at the waist, strain, or lift heavy objects for the next 24 hours.
-Cant primary provider if swelling, new bruising or pain from the procedure puncture site occurs
-Report to provider if fever of 101 or more occurs
-If there is a large amount of bleeding, call 911. (Do not drive to the hospital)
Which term describes the amount of blood ejected per hearbeat?
stroke volume
How is stoke volume determined?
preload, afterload, and contractility of the heart.
What term is characterized by the amount of blood pumped by each ventricle during a given period?
Cardiac output
How is cardiac output determined?
Multiply stroke volume of the heart by the heart rate.
What term of cardiac function is characterized by the percentage of the end-diastolic volume that is ejected with each stroke?
Ejection fraction
What is the normal ejection fraction percentage of the heart?
42-50%
What cardiac functional term is characterized by the pressure that the ventricular myocardium must overcome to eject blood during systole and is one of the determinants of stroke volume?
Afterload
When assessing a client’s pulse before outpatient diagnostic testing, what are the three things the nurse should document?
Rate, quality, and rhythm
Assess apical and radial pulses.
What is the name of the primary pacemaker of the heart:
sinoatrial node