Critical-Care Nursing Final Certification Exam *Q&A* (100% Correct) 2025/2026 |VERIFIED|

Critical-Care Nursing Final Certification Exam *Q&A* (100% Correct) 2025/2026 |VERIFIED| A patient with chronic obstructive pulmonary disease (COPD) presents with increased sputum production, wheezing, and shortness of breath. What is the first-line treatment for this exacerbation? Administering nebulized bronchodilators and systemic corticosteroids What is the most important factor to monitor when managing a patient with aortic dissection? Blood pressure control to prevent further tearing of the aorta What is the preferred pharmacologic intervention for a patient experiencing an acute myocardial infarction with severe pain? Administration of morphine to reduce pain and preload What is the most significant complication to monitor for in a patient with a subdural hematoma? Increased intracranial pressure What is the most important consideration when managing a patient with severe hypothermia? Gradual rewarming to prevent cardiovascular collapse What is the priority nursing intervention in a patient who develops a fever after surgery with signs of infection? Initiating broad-spectrum antibiotics and monitoring vital signs What is the first-line treatment for a patient diagnosed with acute myocardial infarction who presents with shock? Administration of intravenous fluids and inotropes to support cardiac output 1 What is the priority nursing action when a patient develops a suspected air embolism during central venous catheter placement? Positioning the patient in left lateral decubitus with head down and notifying the physician A 52-year-old patient is admitted with suspected septic shock. What is the first step in treatment after establishing an IV access? Administering broad-spectrum antibiotics as soon as possible A patient with a history of congestive heart failure is experiencing an exacerbation. What is the priority intervention? Administering diuretics to reduce fluid overload A 40-year-old female presents with acute confusion, tremors, and a fever of 104°F. Her medical history includes Parkinson's disease, and she was recently switched to a new medication. What is the likely cause of her symptoms? Neuroleptic malignant syndrome What is the key nursing intervention in the management of a patient with an open chest wound and signs of tension pneumothorax? Inserting a chest tube to evacuate air and restore normal lung expansion What is the most critical intervention for a patient experiencing a cardiac tamponade with hypotension and muffled heart sounds? Preparing the patient for pericardiocentesis to relieve pressure on the heart What is the primary nursing intervention in a patient with suspected pulmonary embolism presenting with sudden chest pain and tachypnea? Administering oxygen and preparing for a CT pulmonary angiography What is the most important aspect of care for a patient post-liver transplant who is at risk for infection? Strict hand hygiene and infection prevention protocols 2 A patient with chronic liver disease presents with ascites and an elevated INR. What is the primary concern for this patient? Risk of bleeding due to impaired liver function and coagulopathy In managing patients with severe acute pancreatitis, what is the most important nursing priority in the f irst 48 hours? Fluid resuscitation and careful monitoring of vital signs and laboratory values to prevent complications A patient in septic shock is not responding to fluid resuscitation. What is the next step in management? Initiating vasopressor therapy to maintain mean arterial pressure (MAP) A 67-year-old patient with a history of hypertension presents with altered mental status and elevated blood pressure. What is the most likely diagnosis? Hypertensive encephalopathy What is the primary indication for initiating mechanical ventilation in a patient with ARDS (Acute Respiratory Distress Syndrome)? Severe hypoxemia despite high-flow oxygen therapy A 65-year-old male with a history of coronary artery disease develops chest pain and shortness of breath. His ECG shows ST-segment elevation in leads II, III, and aVF. What is the first step in managing this patient? Immediate administration of aspirin and nitroglycerin, followed by reperfusion therapy In the management of sepsis, what is the recommended initial fluid resuscitation strategy? Administration of 30 mL/kg of crystalloids within the first three hours A 72-year-old female presents with a sudden onset of left-sided weakness, slurred speech, and facial drooping. What is the priority intervention for suspected acute ischemic stroke? 3 Immediate administration of tissue plasminogen activator (tPA) if within the therapeutic window A patient with diabetic ketoacidosis (DKA) is admitted to the ICU with a blood glucose level of 800 mg/dL and a pH of 7.2. What is the first step in the management of DKA? Fluid resuscitation with intravenous normal saline A 58-year-old male with end-stage liver disease presents with confusion, asterixis, and increased ammonia levels. What is the most likely cause of these symptoms? Hepatic encephalopathy A 28-year-old patient presents with acute shortness of breath, a cough producing pink frothy sputum, and crackles on auscultation. What is the likely cause of these symptoms? Pulmonary edema due to left-sided heart failure A 75-year-old male with a history of atrial fibrillation presents with sudden onset of right-sided weakness and aphasia. What is the most critical intervention in this case? Immediate CT or MRI of the brain to rule out hemorrhagic stroke A patient undergoing a liver transplant is experiencing oliguria and rising creatinine levels. What is the most likely cause of these symptoms in the immediate postoperative period? Acute kidney injury due to ischemia-reperfusion injury What is the priority nursing assessment in the first few hours following a patient’s admission with a suspected myocardial infarction? Continuous monitoring of cardiac rhythm and early detection of arrhythmias A patient with an open tibial fracture is at risk for developing compartment syndrome. What is the earliest sign of this condition? Severe pain out of proportion to the injury, especially with passive movement 4 5 What is the first-line treatment for a patient diagnosed with acute pulmonary embolism and hemodynamic instability? Administration of thrombolytic therapy or embolectomy What is the primary rationale for using vasopressors in the management of septic shock? To restore systemic vascular resistance and improve perfusion to vital organs What is the most critical nursing intervention for a patient with severe burns who is at high risk for hypovolemic shock? Administering isotonic fluids and monitoring urinary output What is the best method to reduce the risk of stress ulcers in critically ill patients? Administration of proton pump inhibitors or H2 blockers What is the most significant risk factor for developing ventilator-associated pneumonia (VAP) in an intubated patient? Prolonged mechanical ventilation A 67-year-old male presents with hypotension, fever, and altered mental status. His urine output has decreased. What is the most likely diagnosis? Septic shock due to a urinary tract infection What is the first intervention for a patient who develops a pneumothorax after a central line insertion? Insertion of a chest tube to re-expand the lung What is the primary objective of the "time is brain" concept in the management of acute ischemic stroke? To ensure rapid reperfusion therapy within the first 3 to 4.5 hours of symptom onset 6 A 75-year-old female with a history of heart failure presents with difficulty breathing, a heart rate of 120 bpm, and crackles on lung auscultation. What is the priority intervention? Administering diuretics to reduce fluid overload What is the first-line treatment for patients with acute asthma exacerbations who are unresponsive to inhaled bronchodilators? Systemic corticosteroids A 60-year-old male presents with rapid, irregular heartbeats, dizziness, and syncope. His ECG shows atrial fibrillation with a rapid ventricular response. What is the immediate nursing action? Administering a beta-blocker or calcium channel blocker to control heart rate What is the most important nursing consideration when caring for a patient undergoing hemodialysis with a history of hypotension? Monitoring blood pressure and adjusting the dialysis prescription accordingly What is the most critical complication to monitor for in a patient receiving intravenous norepinephrine? Monitoring for signs of peripheral ischemia and ensuring proper IV line placement What is the priority nursing action for a patient with acute kidney injury and rising creatinine levels? Monitoring fluid and electrolyte balance closely, especially potassium levels What is Hemodynamic Monitoring? Measurement of pressure, flow and oxygenation within the cardiovascular system. What are values that are measured in the ICU with Hemodynamic Monitoring? Systemic and Pulmonary arterial pressures, central venous pressures (CVP), pulmonary artery wedge pressure (PAWP), CO/CI, SV/SV index (SVI) and O2 saturation of the hemoglobin of arterial blood (SaO2) and mixed venous oxygen saturation (SvO2). What is Cardiac Output? The volume of blood in liters pumped by the heart in 1 minute. What is the Stroke Volume? What determines Blood Pressure? What determines SV? The volume ejected with each heartbeat. CO and the forces opposing blood flow. Preload, afterload, and contractility. What is Preload? Volume within the ventricle at the end of diastole. What does PAWP reflect? A measurement of pulmonary capillary pressure that reflects left ventricular end diastolic pressure under normal conditions (i.e., when there is no mitral valve dysfunction, intracardiac defect, or dysrhythmia). What is CVP? Measured in the right atrium, or in the vena cava close to the heart, is the right ventricular preload or right ventricular end-diastolic pressure when there is no tricuspid valve dysfunction, intracardiac defect or dysrhythmia. What is Afterload? Refers to the forces opposing ventricular ejection. What does the Afterload include? The systemic arterial pressure, the resistance offered by the aortic valve, and the mass and density of the blood to be moved. What is Systemic Vascular Resistance? What is Pulmonary Vascular Resistance? What is Contractility? The resistance of the systemic vascular bed. The resistance of the pulmonary vascular bed. Describes the strength of contraction. What are examples of positive inotropes? Epinephrine, norepinephrine (Levophed), isoproterenol (Isuprel), dopamine (Intropin), dobutamine (Dobutrex), digitalis-like drugs, calcium, and milrinone. 7 What category of drugs increase contractility? What category of drugs decrease contractility? What are examples of negative inotropes? Positive Inotropes. Negative Inotropes. Drugs (e.g., alcohol, calcium channel blockers, B adrenergic blockers,) and clinical conditions (e.g., acidosis). What does increased contractility result it? requirements. Increased SV and increased myocardial O2 What is the normal pressure in the Right Atrium, or the CVP? What is the normal PAWP or LAP? What is the normal MAP? 6 - 12 mm Hg. 70 - 105 mm Hg. What is the normal SV? What is the normal CO? 60 - 150 mL/beat. 4 - 8 L/min. What is the normal Arterial Hemoglobin Oxygen Saturation? What is the normal Mixed Venous Hemoglobin Oxygen Saturation? What is the normal Venous Hemoglobin Oxygen saturation? How do you identify the Phlebostatic Axis? 2 - 8 mm Hg. 95% - 100%. 70%. 60% - 80%. Draw two imaginary lines with the patient supine, Draw the first line, a horizontal line, through the midchest, halfway between the outermost anterior and 8 posterior surface. Draw the second line, a vertical line, through the fourth intercostal space at the sternum. The axis is at the intersection of the two imaginary lines. What is Zeroing? Confirms when the pressure within the system is zero, the monitor reads zero. How should you position the patient for the first reading of a Invasive Line BP? patients BP is extremely sensitive to orthostatic changes (then 45*). When is arterial blood pressure monitoring indicated? Supine, unless the Acute hypertension and hypotension, respiratory failure, shock, neurologic injury, coronary interventioanl procedures, continuous infusion of vasoactive drugs, and frequent ABG's. What are complications of arterial lines? neurovascular impairment, and loss of limb. Hemorrhage, infection, thrombus formation, When is hemorrhage most likely to occur with an arterial line? line disconnects. When the catheter dislodges or the What do you do to avoid catheter dislodging or disconnection in a arterial line? connections, always check the arterial waveform, and activate alarms. Use luer-lok How often do you change the pressure tubing, flush bag and transducer with a arterial line? 96 hours. What do you do when infection is suspected with an arterial line? replace the equipment. What do you perform before inserting a line into a radial artery? What does the Allen test confirm? Remove the catheter and Allen test. Ulnar circulation to the hand is adequate. Every 9 How often do you flush a arterial line system? Every 1 - 4 hours. What should the pressure bag for an arterial line be inflated too? How much fluid should the arterial line system be delivering her hour? Why do you not used heparanized saline solution for flush solutions? thrombocytopenia. 300 mm Hg. 3 - 6 mL/hr. Risk of heparin-induced How often do you evaluate the neurovascular status of the affected arm with the arterial line? Every hour. What are PA diastolic (PAD) pressure and PAWP sensitive indicators of? volume status. What increases PAD pressure and PAWP? Cardiac function and fluid Heart failure and fluid volume overload. What decreased PAD pressure and PAWP? Volume depletion. What is the benefit of PA Pressure for fluid therapy? overcorrection or undercorrection of the problem. Can restore fluid balance while avoiding What are indications for Pulmonary Artery Catheterization? ARDS, Acute respiratory failure with COPD, Cardiac Tamponade, evaluation of circulatory syndromes, hypotension unresponsive to fluid resus, IABP therapy, major trauma or burn injury, MI with complications, perioperative fluid imbalace in high risk pts, severe shock. What are contraindications for Pulmonary Artery Catheterization? pacemaker, endocarditis, mechanical tricuspid or pulmonic valve. Coagulopathy, endocardial 10 When positioned properly where is the PA catheter located? The distal lumen exit port is in the PA and the proximal lumen ports are in the right atrium and right ventricle. What is the standard PA catheter? 7.5 Fr, 43 inches (110 cm) long, with four of five lumens. What is the distal port of a PA catheter used to measure? blood specimens. What is the purpose of the balloon inflation of the PA catheter? catheter forward, and to allow PAWP measurements. What do you assess before a PA catheter insertion? coagulation status. PA pressures and sample mixed venous To allow moving blood to float the Electrolyte, acid-base, oxygenation, What can increase the risk of ventricular dysrhythmias during PA catheter insertion? such as hypokalemia, hypomagnesemia, hypoxemia, or acidosis. What do coagulopathy increase the risk of during PA catheter insertion? What do you prepare for before PA catheter insertion? Imbalances Hemmorhage. Arranging the monitor, cables, and infusion and pressurized flush solutions. Zero referenced to the phlebostatic axis. The physician explains the procedure to the patient and obtains informed consent. How is the PA catheter inserted? Through a sheath percutaneously into the internal jugular, subclavian, antecubital, or femral vein using surgical asepsis. It is advanced to the right side of the heart. What do you continuously monitor while the catheter is being advanced? waveforms on the monitor. What should the balloon inflation be of the PA catheter? 1 - 1.5 mL of air. Characteristics 11 What confirms placement of a PA catheter? Chest X-ray. What should you do to maintain the catheter in its proper position? Secure it at the point of entry into the skin. Note and record the measurement at the exit point. Apply an occlusive dressing and change it according to hospital policy. How do you measure PAWP? Slowly inflate the balloon with air (not exceeding balloon capacity) until the PA waveform changes to a PAWP waveform. What can happen if the balloon of the PA catheter is inflated for more than 4 respiratory cycles? There is danger of rupture of the PA if the catheter moves distally into a smaller vessel or if the balloon is overinflated. What is CVP? A measurement of right ventricular preload. What is CVP measured with? A Pa catheter using the proximal lumen located in the right atrium, and also with a central venous catheter placed in the internal jugular or subclavian vein. What can CVP reflect as well? Fluid volume problems. What does an elevated CVP indicate? What does a low CVP indicate? What causes decreased CO and CI? Right ventricular failure, or volume overload. Hypovolemia. Shock states (e.g., cardiogenic, hypovolemic) and heart failure. What does an increase in CO at rest indicate? sepsis. What does increased SVR indicate? Hyperdynamic state often seen with fever or early Vasoconstriction from shock, hypertension, increased release of administration of epinephrine and other vasoactive agents, or left ventricular failure. 12 What does a low SVR indicate? Vasodilation, which may occur in shock states (e.g., septic, neurogenic) or with drugs that reduce afterload. 13