Complex Health Challenges Flashcards
NURS 4036 Erin's Midterm - October 30th (215 cards)
Name 3 clinical manifestations of chronic heart failure.
(week 1)
Fatigue - due to decreased CO, impaired perfusion to vital organs, decreased oxygenation, and anemia
Dyspnea – caused by pulmonary pressures secondary to interstitial and alveolar edema, can occur with mild exertion or at rest, Orthopnea occurs when the patient is in a recumbent position
Paroxysmal nocturnal dyspnea – Due to reabsorption of fluid from dependent areas when the patient lies flat
Cough – dry, nonproductive cough
Tachycardia – due to SNS stimulation
Edema –dependent areas, abdomen, lungs, sacral and scrotal areas
Nocturia – due to impaired renal perfusion during the day, when lying flat blood moves back into the circulatory system
Skin changes – due to increased capillary oxygen extraction – skin appears dusk, lower extremities are shiny, swollen, and diminished hair growth
Behavioural changes – due to decreased cerebral perfusion and/or impaired gas exchange = restlessness, confusion, impaired memory, *Many HF patients have coexisting psychological disorders (depression)
Chest pain – due to decreased coronary artery perfusion
Weight changes – progressive weight gain from fluid retention and renal failure
Name 2 complications of heart failure.
(week 1)
Pleural Effusion – fluid leaking into pleural space
Dysrhythmias – enlargement of heart changes normal electrical pathways (i.e., atrial fibrillation, ventricular tachycardia)
Left Ventricular Thrombus – increased LV and decreased CO increase risk of thrombus formation, emboli can develop from thrombus leading to stroke
Hepatomegaly – venous system backing up into liver leading to impaired liver function, cirrhosis can develop
Renal Failure – decreased CO leads to hypoperfusion of kidneys = renal insufficiency or failure
How do you diagnose heart failure?
(week 1)
Echocardiography – distinguish HFrEF from HFpEF
Measurement of BNP or N-terminal-pro-BNP – help distinguish dyspnea caused by HF from other causes of dyspnea
Chest Xray – can help distinguish pleural effusions from other causes of dyspnea (i.e., pneumonia), can also visualize cardiomegaly
What are the two medication conditions are primary risk factors for heart failure?
(week 1)
Coronary artery disease (CAD) and hypertension (HTN) are the primary risk factors for HF
Diabetes, smoking, obesity, and high serum cholesterol are other risk factors
What are the two categories of heart failure?
(week 1)
Two categories of HF: reduced ejection fraction (HF-REF) and preserved ejection fraction (HF-PEF)
T/F: Reduced ejection fraction (HF-REF) is the most common form of heart failure.
(week 1)
True
More on HF-REF:
Heart can’t pump blood effectively – impaired contractile function, increased afterload (hypertension), cardiomyopathy and mechanical abnormalities. Left ventricle loses ability to generate enough pressure to eject blood forward through aorta.
Describe the patho of reserved ejection fraction (HF-PEF).
(week 1)
Aka diastolic HF – inability of ventricles to relax and fill during diastole
Decreased filling results in decreased stroke volume and cardiac output (CO). Results in venous engorgement in both pulmonary and vascular systems.
Most often results from left ventricular hypertrophy (due to hypertension), myocardial ischemia, valve disease, or cardiomyopathy
Define 2 nursing management interventions for acute decompensated heart failure.
(week 1)
Decrease intravascular volume > loop diuretic med admin
Decrease Venous return > Elevating the head of the bed with feet dangling
Decrease Afterload > Monitor vital signs - decreased systemic vascular resistance (lower BP)
Improving Gas Exchange > Administer oxygen if sats <90%
Improving Cardiac Function >Aggressive complex therapies including inotropic therapies and hemodynamic monitoring
Reduce Anxiety > Calm approach, morphine
Name the two kinds of diuretics used to treat chronic heart failure and describe their function.
(week 1)
Diuretics
- mobilize edematous fluid, reduce pulmonary venous pressure, reduce preload, improve cardiac function
- Loop diuretics (i.e., furosemide [Lasix]) –
Act on the ascending loop of Henle to promote excretion of sodium, chloride, and water used in acute HF and pulmonary edema, risk for hypokalemia - Thiazide diuretics (i.e., hydrochlorothiazide) –
Inhibit sodium reabsorption from distal tubule promoting excretion of sodium and water
Treat edema and HTN
The nurse is preparing to administer digoxin to a patient with heart failure. In preparation, laboratory results are reviewed with the following findings: sodium 139 mEq/L, potassium 5.6 mEq/L, chloride 103 mEq/L, and glucose 106 mg/dL. What should the nurse do next?
A. Withhold the daily dose until the following day.
B. Withhold the dose and report the potassium level.
C. Give the digoxin with a salty snack, such as crackers.
D. Give the digoxin with extra fluids to dilute the sodium level.
(week 1)
B. Withhold the dose and report the potassium level.
The normal potassium level is 3.5 to 5.0 mEq/L. The patient is hyperkalemic, which makes the patient more prone to digoxin toxicity. For this reason, the nurse should withhold the dose and report the potassium level. The physician may order the digoxin to be given once the potassium level has been treated and decreases to within normal range.
What is the priority assessment by the nurse caring for a patient receiving IV nesiritide (Natrecor) to treat heart failure?
A. Urine output
B. Lung sounds
C. Blood pressure
D. Respiratory rate
(week 1)
C. Blood pressure
Although all identified assessments are appropriate for a patient receiving IV nesiritide, the priority assessment would be monitoring for hypotension, the main adverse effect of nesiritide.
A patient admitted with heart failure appears very anxious and complains of shortness of breath. Which nursing actions would be appropriate to alleviate this patient’s anxiety (select all that apply)?
A. Administer ordered morphine sulfate.
B. Position patient in a semi-Fowler’s position.
C. Position patient on left side with head of bed flat.
D. Instruct patient on the use of relaxation techniques.
E. Use a calm, reassuring approach while talking to patient.
(week 1)
A, B, D, E.
Morphine sulfate reduces anxiety and may assist in reducing dyspnea. The patient should be positioned in semi-Fowler’s position to improve ventilation that will reduce anxiety. Relaxation techniques and a calm reassuring approach will also serve to reduce anxiety.
A male patient with a long-standing history of heart failure has recently qualified for hospice care. What measure should the nurse now prioritize when providing care for this patient?
A. Taper the patient off his current medications.
B. Continue education for the patient and his family.
C. Pursue experimental therapies or surgical options.
D. Choose interventions to promote comfort and prevent suffering.
(week 1)
D. Choose interventions to promote comfort and prevent suffering.
The central focus of hospice care is the promotion of comfort and the prevention of suffering. Patient education should continue, but providing comfort is paramount. Medications should be continued unless they are not tolerated. Experimental therapies and surgeries are not commonly used in the care of hospice patients.
What should the nurse recognize as an indication for the use of dopamine (Intropin) in the care of a patient with heart failure?
A. Acute anxiety
B. Hypotension and tachycardia
C. Peripheral edema and weight gain
D. Paroxysmal nocturnal dyspnea (PND)
(week 1)
B. Hypotension and tachycardia
Dopamine is a β-adrenergic agonist whose inotropic action is used for treatment of severe heart failure accompanied by hemodynamic instability. Such a state may be indicated by tachycardia accompanied by hypotension. PND, anxiety, edema, and weight gain are common signs and symptoms of heart failure, but these do not necessarily warrant the use of dopamine.
A patient with a recent diagnosis of heart failure has been prescribed furosemide (Lasix) in an effort to physiologically do what for the patient?
A. Reduce preload.
B. Decrease afterload.
C. Increase contractility.
D. Promote vasodilation.
(week 1)
A. Reduce preload.
Diuretics such as furosemide are used in the treatment of HF to mobilize edematous fluid, reduce pulmonary venous pressure, and reduce preload. They do not directly influence afterload, contractility, or vessel tone.
A patient with a diagnosis of heart failure has been started on a nitroglycerin patch by his primary care provider. What should this patient be taught to avoid?
A. High-potassium foods
B. Drugs to treat erectile dysfunction
C. Nonsteroidal antiinflammatory drugs
D. Over-the-counter H2-receptor blockers
(week 1)
B. Drugs to treat erectile dysfunction
The use of erectile drugs concurrent with nitrates creates a risk of severe hypotension and possibly death. High-potassium foods, NSAIDs, and H2-receptor blockers do not pose a risk in combination with nitrates.
A stable patient with acute decompensated heart failure (ADHF) suddenly becomes dyspneic. Before positioning the patient on the bedside, what should the nurse assess first?
A. Urine output
B. Heart rhythm
C. Breath sounds
D. Blood pressure
(week 1)
D. Blood pressure
The nurse should evaluate the blood pressure before dangling the patient on the bedside because the blood pressure can decrease as blood pools in the periphery and preload decreases. If the patient’s blood pressure is low or marginal, the nurse should put the patient in the semi-Fowler’s position and use other measures to improve gas exchange.
After having an MI, the nurse notes the patient has jugular venous distention, gained weight, developed peripheral edema, and has a heart rate of 108/minute. What should the nurse suspect is happening?
A. ADHF
B. Chronic HF
C. Left-sided HF
D. Right-sided HF
(week 1)
D. Right-sided HF
An MI is a primary cause of heart failure. The jugular venous distention, weight gain, peripheral edema, and increased heart rate are manifestations of right-sided heart failure.
The patient with chronic heart failure is being discharged from the hospital. What information should the nurse emphasize in the patient’s discharge teaching to prevent progression of the disease to ADHF?
A. Take medications as prescribed.
B. Use oxygen when feeling short of breath.
C. Only ask the physician’s office questions.
D. Encourage most activity in the morning when rested.
(week 1)
A. Take medications as prescribed.
The goal for the patient with chronic HF is to avoid exacerbations and hospitalization. Taking the medications as prescribed along with nondrug therapies such as alternating activity with rest will help the patient meet this goal. If the patient needs to use oxygen at home, it will probably be used all the time or with activity to prevent respiratory acidosis.
The home care nurse visits a 73-year-old Hispanic woman with chronic heart failure. Which clinical manifestations, if assessed by the nurse, would indicate acute decompensated heart failure (pulmonary edema)?
A. Fatigue, orthopnea, and dependent edema
B. Severe dyspnea and blood-streaked, frothy sputum
C. Temperature is 100.4o F and pulse is 102 beats/minute
D. Respirations 26 breaths/minute despite oxygen by nasal cannula
(week 1)
B. Severe dyspnea and blood-streaked, frothy sputum
Clinical manifestations of pulmonary edema include anxiety, pallor, cyanosis, clammy and cold skin, severe dyspnea, use of accessory muscles of respiration, a respiratory rate > 30 breaths per minute, orthopnea, wheezing, and coughing with the production of frothy, blood-tinged sputum. Auscultation of the lungs may reveal crackles, wheezes, and rhonchi throughout the lungs. The heart rate is rapid, and blood pressure may be elevated or decreased.
A 54-year-old male patient who had bladder surgery 2 days ago develops acute decompensated heart failure (ADHF) with severe dyspnea. Which action by the nurse would be indicated first?
A. Perform a bladder scan to assess for urinary retention.
B. Restrict the patient’s oral fluid intake to 500 mL per day.
C. Assist the patient to a sitting position with arms on the overbed table.
D. Instruct the patient to use pursed-lip breathing until the dyspnea subsides.
(week 1)
C. Assist the patient to a sitting position with arms on the overbed table.
The nurse should place the patient with ADHF in a high Fowler’s position with the feet horizontal in the bed or dangling at the bedside. This position helps decrease venous return because of the pooling of blood in the extremities. This position also increases the thoracic capacity, allowing for improved ventilation. Pursed-lip breathing helps with obstructive air trapping but not with acute pulmonary edema. Restricting fluids takes considerable time to have an effect.
A 70-year-old woman with chronic heart failure and atrial fibrillation asks the nurse why warfarin (Coumadin) has been prescribed for her to continue at home. Which response by the nurse is accurate?
A. “The medication prevents blood clots from forming in your heart.”
B. “The medication dissolves clots that develop in your coronary arteries.”
C. “The medication reduces clotting by decreasing serum potassium levels.”
D. “The medication increases your heart rate so that clots do not form in your heart.”
(week 1)
A. “The medication prevents blood clots from forming in your heart.”
Chronic heart failure causes enlargement of the chambers of the heart and an altered electrical pathway, especially in the atria. When numerous sites in the atria fire spontaneously and rapidly, atrial fibrillation occurs. Atrial fibrillation promotes thrombus formation within the atria with an increased risk of stroke and requires treatment with cardioversion, antidysrhythmics, and/or anticoagulants. Warfarin is an anticoagulant that interferes with hepatic synthesis of vitamin K-dependent clotting factors.
While assessing an older adult patient, the nurse notes jugular venous distention (JVD) with the head of the patient’s bed elevated 45 degrees. What does this finding indicate?
a. Decreased fluid volume
b. Jugular vein atherosclerosis
c. Increased right atrial pressure
d. Incompetent jugular vein valves
(week 1)
C - Increased right atrial pressure
The jugular veins empty into the superior vena cava and then into the right atrium, so JVD with the patient sitting at a 45-degree angle reflects increased right atrial pressure. JVD is an indicator of excessive fluid volume (increased preload), not decreased fluid volume. JVD is not caused by incompetent jugular vein valves or atherosclerosis.
The nurse is caring for a patient who is receiving IV furosemide (Lasix) and morphine for the treatment of acute decompensated heart failure (ADHF) with severe orthopnea. Which clinical finding is the best indicator that the treatment has been effective?
a. Weight loss of 2 lb in 24 hours
b. Hourly urine output greater than 60 mL
c. Reduced dyspnea with the head of bed at 30 degrees
d. Patient denies experiencing chest pain or chest pressure
(week 1)
C - Reduced dyspnea with the head of bed at 30 degrees
Because the patient’s major clinical manifestation of ADHF is orthopnea (caused by the presence of fluid in the alveoli), the best indicator that the medications are effective is a decrease in dyspnea with the head of the bed at 30 degrees. The other assessment data may also indicate that diuresis or improvement in cardiac output has occurred but are not as specific to evaluating this patient’s response.