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Questions and Answers
What is another term for fine crackles heard in the lungs?
What is another term for fine crackles heard in the lungs?
Which condition is associated with early crackles?
Which condition is associated with early crackles?
What characterizes a normal sinus rhythm?
What characterizes a normal sinus rhythm?
What is a possible clinical sign of renal injury post-cardiac surgery?
What is a possible clinical sign of renal injury post-cardiac surgery?
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Which of the following is commonly associated with dysrhythmias?
Which of the following is commonly associated with dysrhythmias?
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Which sound is characterized as a crowing sound associated with upper airway issues?
Which sound is characterized as a crowing sound associated with upper airway issues?
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What is the normal range for serum creatinine levels in adult females?
What is the normal range for serum creatinine levels in adult females?
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What is a defining characteristic of ventricular tachycardia?
What is a defining characteristic of ventricular tachycardia?
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What is a common adverse effect of calcium channel blockers used in treating variant angina?
What is a common adverse effect of calcium channel blockers used in treating variant angina?
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What symptom distinguishes variant angina from typical angina?
What symptom distinguishes variant angina from typical angina?
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What is indicated if a patient's urine output is lower than 30 mL/hr?
What is indicated if a patient's urine output is lower than 30 mL/hr?
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Which of the following should be avoided by a client taking warfarin sodium?
Which of the following should be avoided by a client taking warfarin sodium?
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What does a therapeutic activated partial thromboplastin time (aPTT) look like for a patient on heparin therapy?
What does a therapeutic activated partial thromboplastin time (aPTT) look like for a patient on heparin therapy?
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What physiological response can result from excessive alcohol consumption in a patient taking warfarin sodium?
What physiological response can result from excessive alcohol consumption in a patient taking warfarin sodium?
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What is a characteristic feature of ventricular fibrillation?
What is a characteristic feature of ventricular fibrillation?
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Which position change should clients taking calcium channel blockers be cautious of?
Which position change should clients taking calcium channel blockers be cautious of?
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What is the primary concern when administering thrombolytic therapy?
What is the primary concern when administering thrombolytic therapy?
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Which of the following conditions may increase the risk of digoxin toxicity?
Which of the following conditions may increase the risk of digoxin toxicity?
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Which medication should be avoided due to the risk of liver abnormalities?
Which medication should be avoided due to the risk of liver abnormalities?
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What is the optimal therapeutic range for digoxin?
What is the optimal therapeutic range for digoxin?
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Which adverse effects are considered most common with lipid-lowering medications?
Which adverse effects are considered most common with lipid-lowering medications?
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What is the most critical monitoring requirement after thrombolytic therapy?
What is the most critical monitoring requirement after thrombolytic therapy?
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Which of the following diuretics is sulfa-based and may pose a risk to clients with a sulfa allergy?
Which of the following diuretics is sulfa-based and may pose a risk to clients with a sulfa allergy?
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What symptom is a typical early manifestation of digoxin toxicity?
What symptom is a typical early manifestation of digoxin toxicity?
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What is a common symptom experienced by clients with ventricular tachycardia?
What is a common symptom experienced by clients with ventricular tachycardia?
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Which of the following can lead to decreased cardiac output in ventricular tachycardia?
Which of the following can lead to decreased cardiac output in ventricular tachycardia?
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What is the initial treatment for ventricular tachycardia if the client is awake?
What is the initial treatment for ventricular tachycardia if the client is awake?
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What significant change occurs in the rhythm during atrial fibrillation?
What significant change occurs in the rhythm during atrial fibrillation?
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Which of the following statements about premature ventricular contractions is true?
Which of the following statements about premature ventricular contractions is true?
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What is the energy level used for all defibrillation attempts with a monophasic defibrillator?
What is the energy level used for all defibrillation attempts with a monophasic defibrillator?
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What should be checked before using the defibrillator on a patient?
What should be checked before using the defibrillator on a patient?
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Which condition is NOT associated with loss of cardiac output?
Which condition is NOT associated with loss of cardiac output?
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What is the normal range for magnesium in mEq/L?
What is the normal range for magnesium in mEq/L?
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What indicates a progression to pulmonary edema?
What indicates a progression to pulmonary edema?
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What should be reported to the primary health care provider before initiating thrombolytic therapy?
What should be reported to the primary health care provider before initiating thrombolytic therapy?
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Which medication is an antidote for warfarin sodium?
Which medication is an antidote for warfarin sodium?
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What is a common side effect of bumetanide?
What is a common side effect of bumetanide?
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What should be avoided when taking nicotinic acid for hyperlipidemia?
What should be avoided when taking nicotinic acid for hyperlipidemia?
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What indicates worsening heart failure when assessing BNP?
What indicates worsening heart failure when assessing BNP?
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What indicates hepatic dysfunction when observed in stool?
What indicates hepatic dysfunction when observed in stool?
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Study Notes
Respiratory Sounds
- Fine crackles, also known as rales, resemble the sound of wood burning in a fireplace.
- Can be heard during both inspiration and expiration, typically at lung bases.
- Early crackles are associated with chronic bronchitis; late crackles indicate pneumonia, congestive heart failure, or atelectasis.
- Rhonchi and diminished breath sounds are not linked to pulmonary edema.
- Stridor is characterized by a crowing sound linked with laryngospasm or upper airway edema.
Cardiovascular Concerns
- Dysrhythmias can occur due to decreased oxygenation and severe myocardial damage (>40%).
- Classic signs of cardiogenic shock include low blood pressure and tachycardia, with rising central venous pressure due to severe left ventricular failure.
- Pulsus paradoxus is associated with cardiac tamponade.
Cardiac Surgery Risks
- Clients undergoing cardiac surgery risk renal injury from poor perfusion, hemolysis, low cardiac output, or vasopressor treatment.
- Decreased urine output and increased BUN and creatinine levels signal renal injury.
- Normal reference levels for BUN: 10 to 20 mg/dL (3.6 to 7.1 mmol/L). For creatinine: 0.6 to 1.2 mg/dL (53 to 106 mcmol/L) for males, and 0.5 to 1.1 mg/dL (44 to 97 mcmol/L) for females.
- Medications may be needed to improve renal perfusion; dialysis options might be considered.
Heart Rhythm and Dysrhythmias
- Normal sinus rhythm is defined as a rate of 60 to 100 beats per minute, with normal PR (0.12 - 0.20 seconds) and QRS measurements (0.04 - 0.10 seconds).
- Sudden loss of ECG complexes indicates ventricular asystole or possible electrode displacement; accurate assessment is crucial.
- Ventricular tachycardia features absent P waves, wide QRS complexes (>0.12 seconds), and a rate of 140-180 bpm; it is life-threatening and can lead to ventricular fibrillation.
- Early signs of ventricular tachycardia include feelings of impending doom and low cardiac output leading to potential ischemia.
Atrial Fibrillation
- Characterized by the absence of P waves and the presence of fibrillatory waves.
- Loss of atrial contraction, or "atrial kick," increases the risk of low cardiac output.
- Clients may experience palpitations, chest pain, hypotension, pulse deficit, dizziness, and distended neck veins.
- Hypertension and flat neck veins are not related to decreased cardiac output.
Defibrillation Protocol
- CPR is initiated until the defibrillator is ready; ECG checked for ventricular fibrillation or pulseless ventricular tachycardia.
- The energy level for defibrillation using a monophasic defibrillator is set at 360 joules.
- Normal ranges for activated partial thromboplastin time (aPTT) are 30 to 40 seconds; therapeutic levels should be 1.5 to 2.5 times this reference.
Thrombolytic Therapy and Complications
- Aspirin should be avoided during warfarin treatment due to increased bleeding risk.
- Alcohol should also be avoided with warfarin to prevent interactions.
- Hemorrhage is a risk with thrombolytic medications; clients must be monitored for bleeding.
- Normalizing BUN and creatinine levels again signal the need for ongoing assessment for renal function after potential acute kidney injury.
Variant Angina
- Also known as Prinzmetal’s angina; characterized by prolonged, severe pain usually at rest due to coronary artery spasm; treated with calcium channel blockers.
- Effects of calcium channel blockers can include peripheral edema, hypotension, and bradycardia; grapefruit juice should be avoided.
Digoxin and Its Risks
- Digoxin is used for heart failure and arrhythmias; risk of toxicity needs careful monitoring.
- Early toxicity signs include gastrointestinal symptoms, while later signs involve vision changes (yellow-green halos), drowsiness, and rhythm abnormalities.
- Optimal digoxin levels are 0.5 to 2.0 ng/mL; caution is necessary with conditions like hypercalcemia or hypokalemia.
Diuretic Therapy
- Bumetanide is a diuretic; expected outcomes include increased urine output, decreased crackles, and lower body weight.
- Common side effects include potassium loss; frothy pink sputum can indicate pulmonary edema.
Interventions for Complications
- Antidotes: Protamine sulfate for heparin, vitamin K for warfarin, potassium chloride for deficits, and aminocaproic acid for thrombolytics.
- If a client exhibits anaphylaxis during thrombolytic therapy, stop the infusion immediately and notify the rapid response team.
- Monitoring for renal failure and psychopathology is important but secondary to immediate interventions like re-evaluating blood pressure in thrombolytic therapy candidates.
Lifestyle Considerations
- Encourage clients to manage lifestyle factors that contribute to hyperlipidemia, focusing on dietary adjustments and exercise.
- Flushing may occur with nicotinic acid; preemptive aspirin can mitigate this effect.
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Description
Test your knowledge on pulmonary sounds, specifically fine crackles or rales. This quiz covers their characteristics, associated conditions like chronic bronchitis and pneumonia, and their auscultation sites. Perfect for students studying respiratory health or medical professionals seeking a refresher.