Unit 2 Outline Flashcards
What is the nurse’s role in maintaining ventricular-assistive devices (VADs)?
The nurse’s role includes patient assessment, device monitoring, patient education, maintenance of equipment, emergency preparedness, documentation, collaboration, and psychosocial support.
What is Acute Coronary Syndrome (ACS)?
ACS is an umbrella term for conditions associated with sudden, reduced blood flow to the heart, primarily caused by coronary artery disease.
What are the characteristics of Acute Coronary Syndrome (ACS)?
Includes unstable angina, NSTEMI, and STEMI. Symptoms include chest pain, shortness of breath, sweating, nausea, and lightheadedness.
What is Myocardial Infarction (MI)?
MI is a type of ACS that refers to the death of heart muscle tissue due to prolonged ischemia.
What are the symptoms of Myocardial Infarction (MI)?
Symptoms are similar to ACS but often more severe and persistent, including ‘crushing’ chest pain.
What is Heart Failure (HF)?
HF is a chronic condition where the heart cannot pump sufficiently to maintain blood flow to meet the body’s needs.
What are the types of Heart Failure (HF)?
Types include systolic heart failure (HFrEF) and diastolic heart failure (HFpEF).
What is Acute Respiratory Distress Syndrome (ARDS)?
ARDS is an acute inflammatory response in the lungs leading to increased permeability of the alveolar-capillary membrane, resulting in pulmonary edema and respiratory failure.
What are the clinical features of ARDS?
Symptoms include sudden onset of dyspnea, tachypnea, and hypoxemia, with physical examination showing use of accessory muscles for breathing and cyanosis.
What are the diagnostic criteria for ARDS?
The Berlin Definition categorizes ARDS based on the degree of hypoxemia: mild, moderate, and severe.
What is the interpretation process for arterial blood gas (ABG) results?
Interpretation involves assessing pH, analyzing PaCO2, evaluating HCO3-, and checking PaO2 and SaO2.
What are common nursing problems for clients on mechanical ventilation?
Common problems include impaired gas exchange, risk of ventilator-associated pneumonia, sedation and anxiety, barotrauma, infection, immobility, nutritional deficiencies, and psychosocial issues.
What are the characteristics of a Nasal Cannula?
A lightweight device delivering 1 to 6 L/min, providing 24% to 44% oxygen concentration. It’s comfortable and allows for oral communication.
What are the characteristics of a Simple Face Mask?
Covers the nose and mouth, delivering 5 to 10 L/min with 40% to 60% oxygen concentration. It can be uncomfortable for long-term use.
What is a Venturi Mask?
A mask with interchangeable adapters for precise oxygen control, delivering 24% to 50% oxygen concentration at 4 to 15 L/min.
What is a Non-Rebreather Mask (NRB)?
A mask with a reservoir bag and one-way valves that prevent exhaled air from entering the bag, providing high concentrations of oxygen.
What is the oxygen flow rate for a Non-Rebreather Mask (NRB)?
Delivers high concentrations of oxygen, typically > 90% when properly fitted and used at a flow rate of 10 to 15 L/min.
What are the indications for using a Non-Rebreather Mask (NRB)?
Used for patients with severe hypoxemia or respiratory distress, such as in cases of pneumonia or acute respiratory failure.
What are the advantages of using a Non-Rebreather Mask (NRB)?
Provides a high concentration of oxygen, useful in emergencies.
What are the disadvantages of using a Non-Rebreather Mask (NRB)?
Can be uncomfortable; prolonged use may lead to CO2 retention if not monitored.
What is the description of a High-Flow Nasal Cannula (HFNC)?
A specialized nasal cannula system that delivers heated and humidified oxygen at high flow rates.
What is the oxygen flow rate for a High-Flow Nasal Cannula (HFNC)?
Delivers up to 60 L/min, providing accurate and adjustable oxygen concentrations (21% to 100%).
What are the indications for using a High-Flow Nasal Cannula (HFNC)?
Used for patients with moderate to severe respiratory distress, especially in conditions like pneumonia, asthma exacerbations, or post-extubation.
What are the advantages of using a High-Flow Nasal Cannula (HFNC)?
Enhances comfort, provides humidification, and can improve oxygenation without the need for invasive ventilation.