In: Nursing
What are your focused assessments for a client with heart faliure?
1 techniques:
2 techniques:
A focused assessment of the cardiac system includes a review for
common or concerning symptoms: Chest pain assess location, when it
occurs, intensity, type, duration, with or without exertion,
radiation, associated symptoms (shortness of breath, sweating,
nausea, palpitations, anxiety), and alleviating factors.
Palpitations assess for sensation of skipping, racing, fluttering,
pounding or stopping of the heart. Shortness of breath or
dyspnea-assess whether it occurs: with lying down and is relieved
by sitting up (orthopnea); upon awakening 1 to 2 hours after going
to sleep and is relieved by sitting up or standing (paroxysmal
nocturnal dyspnea); with bending over (bendopnea); or occurs with
the presence of cough. Swelling or edema-assess whether it is worse
in morning or evening, and whether it improves with elevation. Ask
about risk factors such as: family or personal history of heart
disease including hypertension, smoking status, diet (BMI-obesity,
lipids, salt intake), alcohol and illicit drug use, physical
activity, and type 2 diabetes. These are also risk factors for
peripheral artery disease. Gather information regarding usual
activity such as prolonged standing, walking, or sitting and family
or personal history of thrombophlebitis, bleeding disorders, or
easy bruising. In addition, ask whether they experience pain in the
legs during activity (intermittent claudication),
numbness/tingling, aching, or cramping; swelling in calves, legs,
or feet. Ask the patient if they have had skin changes such as cold
skin, pallor or redness, hair loss, veins visible, or lower leg
ulceration.
Geriatric Considerations :-
Age related cardiac changes include reduced arterial compliance and
left ventricular diastolic dysfunction. Atypical symptoms lead to
delays in treatment. Silent or unrecognized myocardial infarction
occurs frequently in patients greater than 85 years of age. While
elderly patients may present with chest pain, primary complaints
for myocardial infarction are often dyspnea, diaphoresis,
nausea/vomiting, or syncope. In older adults inquire about
confusion, dizziness, syncope, or orthostatic hypotension as these
symptoms may indicate reduced blood supply to the brain related to
heart or circulatory changes. Also, ask about depressive symptoms-a
very large longitudinal study to assess the effects of depression
on coronary heart disease in older adults indicated depression and
poor exercise capacity predicted functional decline. The authors
suggest that treating depression symptoms may be as important as
treating CVD severity.
Objective Data :- Accurate measurements of your patient's
height/weight trends and vital signs provide valuable information
about cardiovascular function. Perform and analyze the blood
pressure readings, pulse rate and quality, and respiratory rate
near the same time. If two or more abnormal values are found, this
can provide clues to the source of the problem. For example, if the
blood pressure is low and the pulse is rapid and thready, this may
be indicative of shock or a low perfusion state. If you obtain an
abnormal value, repeat the measurement again to ensure its
accuracy.Normal readings vary with the patient's age. Systolic
blood pressure increases with age due to increased rigidity of the
blood vessel walls, temperature decreases with age, and respiratory
rate often increases with age or underlying pathology. Consider
that abnormal values for one patient may be normal for another.
Knowing a patient's baseline measurements, underlying medical
conditions and medication regimen is important in analyzing your
findings. For accuracy and consistency, the blood pressure cuff
must be the appropriate size. If the cuff is too large, the
readings will be artificially low. If the cuff is too small, the
readings will be artificially high. The difference between the
apical pulse and radial pulse is called the pulse deficit. This is
an indirect measurement of the ability of each cardiac contraction
to eject sufficient blood into the peripheral circulation. Height
and weight are important for evaluating nutritional status and
assessing fluid loss or gain. Weight loss over months or years can
be a clue to advancing CVD and be a sign of muscle wasting and poor
nutrition. Abrupt (overnight, days, or weeks) weight loss or gain
is helpful in assessing fluid status. An abrupt weight gain may be
an indication of worsening heart failure, whereas abrupt weight
loss may be an indication of over diuresis. Weight should be
measured first thing in the morning, after urination but before
dressing or eating. Note: weight can vary depending on the time of
day it is measured, the scale used, and the amount of clothing
being worn by the patient during measurement.
Inspection :- Inspection begins when you first encounter the
patient. Look for general appearance: body habitus (thin, obese),
level of alertness (anxious, somnolent, lethargic), skin color,
turgor, texture, temperature, and diaphoresis. Observe mucous
membranes for pallor and extremities for clubbing of fingers or
cyanosis. While the patient is sitting or lying flat, observe
pulsations, retractions, heaves (a strong outward thrust of the
chest wall during systole), and symmetry of movement. Locate the
point of maximal impulse normally found in the left fifth
intercostal space, medial to the left midclavicular line, which
corresponds to the apex of the heart. Displacement to the left can
indicate an enlarged heart. It is more noticeable in children and
adults with thin chest walls. If examining a woman with large
breasts, displace the breast during the examination. Examine the
patient's extremities to assess arterial or venous disorders and
symmetry, noting skin color, hemosiderin staining, edema, weeping,
lesions, scars, or clubbing, and pattern and distribution of body
hair. Examine the blood vessels in the neck. The carotid artery
should have a local, brisk pulsation that does not decrease when
the patient is upright or inhales, or during palpation. The
internal jugular vein should have a softer, undulating pulsation
that changes in response to positioning, breathing, and palpation.
The internal jugular veins provide information about blood volume
and pressure in the right side of the heart. To measure the jugular
venous pulse, position patient on his back and elevate the head of
the bed 30 to 45 degrees, with the patient's head turned slightly
away from you. Measure the highest pulsation above the sternal
notch. It should not be more than 1.5 inches (4 cm) above the
sternal notch. If it is higher, it indicates elevation in central
venous pressures and jugular vein distention.
Palpation :- While palpation of the chest is often overlooked as a
source of information regarding the cardiovascular system, the
findings can be helpful in making an accurate assessment. Palpate
over the precordium to find the apical impulse. Also note any
thrills, heaves, or fine vibrations. You can use one hand to
palpate the patient's carotid artery and the other to palpate the
apical impulse to confirm that it is the apical impulse and not a
muscle spasm or other pulsation. Compare the timing and regularity
of the impulses. The apical pulse should coincide with the carotid
pulse. Note the size, location, intensity, amplitude, and duration
of the apical impulse. It should be a gentle pulsation in an area
about one-half to three-fourths inch (1.5-2 cm) in diameter.
Obesity or a thick chest wall may hamper the assessment. Any other
pulsation in the chest is considered abnormal. The exception is if
the patient is thin, you may palpate the aortic arch pulsation in
the sternoclavicular area or an abdominal aorta pulsation in the
epigastric area. Palpate the patient's legs and arms to assess skin
temperature, texture, turgor, and edema. Edema is graded on a
four-point scale. From 1+ if the examiner's finger leaves a slight
imprint to +4 if the examiner's finger leaves a deep imprint that
only slowly returns to normal. Check capillary refill by assessing
the nail beds on the fingers and toes. Refill time should be 3
seconds or less. Palpate the temporal, carotid, brachial, radial,
femoral, popliteal, posterior tibial, and dorsalis pedis pulses
using the pads of the index and middle fingers. All pulses should
be regular in rhythm and equal in strength.
Percussion :- Percussion is not as useful as other methods of
assessment in evaluating the cardiovascular system, but it may help
locate the cardiac borders. Percuss along the anterior axillary
line and continue toward the sternum along the fifth intercostal
space. The sound changes from resonance to dullness over the left
border of the heart, normally at the midclavicular line. The right
border of the heart is aligned with the sternum and cannot be
percussed. Percussion is difficult in obese patients because of the
adipose tissue overlying the chest or in the female patients
because of breast tissue.
Auscultation :- Skillful auscultation of the heart can provide a
great deal of information that is useful in evaluating a patient's
clinical status and planning care. Unfortunately, healthcare
providers feel the least competent with auscultation of heart
sounds. This may be due to teaching techniques, which do not
reinforce repetitive listening skills and application in the
clinical setting. For a home healthcare provider to become
competent and confident in cardiac auscultation, practice,
practice, and more practice is required. The following are several
free sites on the Internet for repetitive auscultation training for
heart sounds and murmurs.
First begin with a stethoscope that has snug fitting earplugs and tubing no longer than 15 inches with an internal diameter one-eighth of an inch or less. The stethoscope should have a diaphragm and a bell. To auscultate, hold the diaphragm firmly against the patient's skin to hear high-pitched sounds. Low-pitched sounds are best heard using the bell, held lightly against the skin, just enough to form a seal. If the bell is held more firmly, it causes the skin to act as a diaphragm and, therefore, the low-pitch sounds are missed by the examiner. A quiet environment is essential to hear heart sounds and evaluate accurately. This may require that a TV be turned down or muted during the exam. Other background noises such as fans, appliances, lawn mowers, and additional conversations may need to be addressed to adequately and accurately auscultate cardiac sounds. Privacy issues should also be addressed, as the area to be auscultated should be exposed. Auscultation should not be performed over clothing or bandages. Be aware that hair on the patient's chest may cause friction under the bell or diaphragm, which can mimic abnormal sounds such as a friction rub. This can be minimized by lightly wetting the hair before auscultation. It may be helpful for the examiner to close his or her eyes to focus attention on what is being heard and identify the characteristics of one sound at a time. Cardiac auscultation should be conducted with the patient in three positions. These are sitting up, lying on the left side, and lying on the back with the head of the bed raised 30 to 45 degrees. Murmurs and pericardial friction rubs are best heard with the patient sitting up and leaning forward. Use a zigzag pattern over the precordium starting at the base of the heart and working downward. Use the bell to listen as you go in one direction, then use the diaphragm as you auscultate in the other direction. Listen over the entire precordium, not just over the valves.
Listening for S1, S2, S3,
S4 :- Normal heart sounds, S1 (the first heart sound or "lub") and S2 (the second heart sound or "dub"), are generated by events in the cardiac cycle. S1 is associated with the closure of the mitral and tricuspid valves and is best heard at the apex of the heart. This signals the onset of systole. S2 is best heard at the base of the heart and corresponds to the closure of the pulmonic and aortic valves. It is a shorter, higher-pitched, louder sound than S1 and signals the onset of diastole. These sounds are radiated to specific areas of the chest wall. Auscultation sites are identified by the names of heart valves but are not located directly over the valves. Rather, these sites are located along the pathway blood takes as it flows through the heart chambers and valves. A third heart sound, S3, is commonly heard in patients with a high cardiac output and in children. It is called a ventricular gallop when it occurs in adults. S3 may be a cardinal sign of heart failure. S3 is best heard at the apex when the patient is lying on his left side. It is often compared to the "y" sound in "Ken-tuck-y." It is low-pitched and occurs when the ventricles fill rapidly. It follows the S2 in early ventricular diastole and probably results from vibrations caused by abrupt ventricular distention and resistance to filling. Recent studies find a correlation between S3 finding upon admission and a poor outcome. A fourth heart sound, S4 is considered an adventitious sound and is called an atrial gallop (or presystolic gallop). It is heard best over the tricuspid or mitral areas with the patient on his left side. It may be heard in patients who are elderly, those with hypertension, aortic stenosis, or a history of myocardial infarction. S4 is commonly described as sounding like "Ten-nes-see," and occurs just before S1, after atrial contraction. This sound results from vibrations caused by forceful atrial ejection of blood into the ventricles that do not move or expand as much as they should.
Listening for Murmurs :-
Murmurs occur when there is turbulent blood flow caused by structural defects in the heart's chambers or valves. Turbulence can be caused by changes in the viscosity of blood or the speed of blood flow. Listen for murmurs over the same precordial areas used in auscultation for heart sounds. Murmurs have various characteristics and are described using many terms. Some commonly used terms include rumbling; blowing; low, medium, and high-pitched. A murmur can also be described as crescendo (increases in intensity) or decrescendo (decreases in intensity). Murmurs can be described according to where they occur in the cardiac cycle. For example, it may be heard during early or late diastole or systole. It can also be heard throughout systole and is described as pansystolic or holosystolic. One example is the murmur that occurs with mitral insufficiency when blood regurgitates into the left atrium. The regurgitation produces a high-pitched, blowing pansystolic murmur best heard in the 5th intercostal space, midclavicular line (or the apex of the heart), and radiates to the left axillary line. Aortic stenosis is a condition in which the aortic valve has calcified and restricts blood flow and causes the blood to be turbulent and under high pressure as it crosses the stiffened leaflets through a narrowed opening. This causes a midsystolic, low-pitched, harsh crescendo-decrescendo murmur that radiates from the valve to the carotid artery. The murmur shifts from crescendo to decrescendo and back. Again, identifying even the most common murmurs takes practice with repetitive listening to hone skills. Murmurs are graded based on the intensity of the sound. Auscultation of the vascular system should be completed in an orderly manner using the bell of the stethoscope. Follow the same sequence used in palpating the arterial pulses: carotid, brachial, radial, femoral, popliteal, posterior tibial, and dorsalis pedis pulses. A bruit sounds like buzzing or blowing. It is a murmur like sound with a vascular origin. If you hear a bruit during arterial auscultation, the patient may have occlusive arterial disease or an arteriovenous fistula. If a bruit is heard over the carotid artery, it could indicate arteriosclerotic plaque formation. Abnormal pulsations over the upper abdomen could indicate the presence of an abdominal aortic aneurysm. The femoral and popliteal pulses should be checked for a bruit or other abnormal sounds.