Mixed Deck — All PCCN Topics Flashcards

Which of the following medication classes is considered first-line for rate control in a stable patient newly diagnosed with atrial fibrillation and a rapid ventricular response?

Answer: Beta-blockers

For stable patients with atrial fibrillation and a rapid ventricular response, beta-blockers (e.g., metoprolol) or non-dihydropyridine calcium channel blockers (e.g., diltiazem) are recommended as first-line agents for rate control. Amiodarone is typically used for rhythm control or in specific situations like heart failure. Digoxin is generally considered a second-line agent as it is less effective at controlling heart rate during exercise. Sodium channel blockers are used for rhythm control, not rate control.

A patient recovering from septic shock develops bilateral pulmonary infiltrates, PaO2/FiO2 ratio of 150, and respiratory failure without cardiac cause. The nurse recognizes this as:

Answer: Acute respiratory distress syndrome (ARDS)

Bilateral infiltrates, severe hypoxemia (P/F < 200), and non-cardiac etiology following sepsis meet the Berlin criteria for ARDS.

In a patient with chronic obstructive pulmonary disease (COPD), which symptom suggests the need for hospitalization?

Answer: Use of accessory muscles to breathe

The use of accessory muscles to breathe signifies increased work of breathing and severe respiratory distress, indicating a significant exacerbation of COPD. This symptom suggests that the patient's respiratory system is struggling to maintain adequate oxygenation and ventilation. It is a critical sign requiring immediate medical attention and likely hospitalization to prevent respiratory failure.

A patient with a spinal cord injury at the level of T4 is at risk for which potentially life-threatening complication?

Answer: Autonomic dysreflexia

Autonomic dysreflexia is a potentially life-threatening condition that can occur in patients with spinal cord injuries at or above T6. It is characterized by an exaggerated sympathetic response to noxious stimuli below the level of injury, leading to severe hypertension, bradycardia, and headache. A T4 injury places the patient at high risk for this emergency, requiring immediate recognition and management.

A progressive care nurse is supporting the family of a patient who has just been told the prognosis is terminal. The family members are arguing among themselves and appear angry. The nurse should recognize this behavior as:

Answer: A normal grief response that may reflect denial, fear, and helplessness

Anger and conflict among family members in crisis situations are common manifestations of grief and reflect normal emotional responses including helplessness, fear, and denial.

A 68-year-old male with a history of type 2 diabetes is admitted to the progressive care unit with altered mental status. His laboratory results show a blood glucose of 850 mg/dL, serum osmolality of 340 mOsm/kg, and a negative urine ketone test. Which of the following interventions is the highest priority?

Answer: Initiating fluid resuscitation with an isotonic solution.

The patient's presentation is consistent with Hyperosmolar Hyperglycemic State (HHS). The most critical initial intervention is aggressive fluid resuscitation to correct the profound dehydration and hyperosmolality, which are the primary causes of the altered mental status. While insulin will be administered, correcting the fluid deficit is the first priority to restore tissue perfusion.

A nurse is caring for a patient experiencing opioid withdrawal. Which cluster of symptoms should the nurse expect?

Answer: Tachycardia, diaphoresis, piloerection, and yawning

Opioid withdrawal produces a hyperadrenergic state characterized by tachycardia, diaphoresis, piloerection (goosebumps), yawning, lacrimation, and muscle aches.

A patient with liver cirrhosis is at risk for hepatic encephalopathy. Which assessment finding most supports this diagnosis?

Answer: Asterixis (flapping hand tremor)

Hepatic encephalopathy is a neurological complication of liver cirrhosis caused by the accumulation of toxins, primarily ammonia, in the bloodstream. Asterixis, often called a 'liver flap,' is a characteristic motor disturbance seen in patients with this condition. It indicates impaired neurological function due to the liver's inability to detoxify harmful substances.

Which parameter is most reliable in evaluating the effectiveness of oxygen therapy?

Answer: SpO₂ level

The SpO₂ (pulse oximetry) level directly measures the percentage of hemoglobin saturated with oxygen in the arterial blood. It provides an immediate and objective assessment of oxygenation status and the effectiveness of oxygen therapy. While other parameters like respiratory rate and lung sounds are important, SpO₂ offers a direct physiological measure of how well the body is being oxygenated.

Which intervention is most effective in preventing ventilator-associated pneumonia (VAP)?

Answer: Elevating the head of bed to 30–45 degrees

Elevating the head of the bed to 30-45 degrees (semi-recumbent position) is a cornerstone intervention for preventing ventilator-associated pneumonia (VAP). This position helps to reduce gastric reflux and the aspiration of oral and gastric secretions into the lungs, which are primary pathways for bacterial entry and subsequent pneumonia development in mechanically ventilated patients.

A patient with a history of heart failure is being discharged from the progressive care unit. The nurse is providing education on lifestyle modifications. Which statement by the patient indicates a need for further teaching?

Answer: "I will try to drink at least 3 liters of water every day to stay hydrated."

Patients with heart failure are often on a fluid restriction to prevent volume overload. Encouraging a high fluid intake, such as 3 liters per day, would be contraindicated and indicates a need for further education. Daily weights, sodium restriction, and medication adherence are all key components of successful heart failure self-management.

Confidentiality is best maintained in the progressive care setting by:

Answer: Speaking quietly during handoff at the nurses' station

Maintaining patient confidentiality is paramount in healthcare. Speaking quietly during handoff reports at the nurses' station minimizes the risk of unauthorized individuals overhearing sensitive patient information. Discussing cases in public areas, using only initials, or sharing information with friends/family are breaches of confidentiality and HIPAA violations.

When preparing to transfuse irradiated blood products, the nurse understands this measure prevents which complication?

Answer: Transfusion-associated graft-versus-host disease

Irradiation inactivates donor T lymphocytes, preventing transfusion-associated graft-versus-host disease in immunocompromised patients.

A nurse is preparing to suction a patient’s endotracheal tube. What is the most appropriate action before suctioning?

Answer: Hyperoxygenate the patient

Hyperoxygenating the patient before suctioning is a crucial step to prevent hypoxemia, which can occur during the procedure due to the removal of oxygen from the airway. This action helps to maintain adequate oxygen saturation and minimize the risk of complications such as arrhythmias or cardiac arrest. It ensures the patient has a reserve of oxygen during the temporary interruption of ventilation.

The nurse notices that a patient who was previously cooperative has become withdrawn, stopped eating, and states 'nothing matters anymore.' These findings are MOST consistent with:

Answer: Clinical depression requiring further assessment and intervention

Withdrawal, anhedonia (loss of interest), anorexia, and hopelessness are hallmark symptoms of clinical depression that require formal assessment using validated tools (e.g., PHQ-2/PHQ-9) and prompt intervention.

A patient with asthma is experiencing wheezing and shortness of breath. Which medication should the nurse expect to administer first?

Answer: Albuterol nebulizer

Albuterol is a short-acting beta-2 agonist (SABA) and a bronchodilator. It works rapidly to relax the smooth muscles of the airways, opening them up and relieving acute symptoms like wheezing and shortness of breath during an asthma exacerbation. It is considered a 'rescue' medication and is the first-line treatment for acute asthma attacks.

Which action by the nurse demonstrates advocacy for a critically ill patient?

Answer: Communicating the patient’s wishes to the care team

Patient advocacy involves speaking up for the patient, ensuring their rights are respected, and their needs and wishes are communicated effectively to the healthcare team. This empowers the patient, especially when they are critically ill and may not be able to advocate for themselves. Administering medications or reassuring family are important but do not solely define advocacy.

A patient with acute coronary syndrome is found to have comorbid major depression. The nurse understands that depression in cardiac patients is significant because it:

Answer: Is associated with increased mortality, poor medication adherence, and worse cardiac outcomes

Depression is an independent risk factor for adverse cardiac outcomes; it is associated with increased mortality, poor adherence to cardiac medications and lifestyle changes, and higher rates of recurrent cardiac events.

The nurse is assessing a patient for alcohol withdrawal using the Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar) scale. Which finding would indicate the most severe level of withdrawal?

Answer: Severe agitation, hallucinations, and seizures with a score of 22

A CIWA-Ar score ≥20 indicates severe withdrawal requiring aggressive pharmacologic intervention; scores with seizures and hallucinations represent the highest risk category.

Which of the following medications requires a peak and trough level for safe administration?

Answer: Vancomycin

Vancomycin is an antibiotic with a narrow therapeutic index, meaning the difference between an effective and a toxic dose is small. Therefore, peak and trough levels are routinely monitored to ensure therapeutic concentrations are achieved while minimizing the risk of serious adverse effects such as nephrotoxicity (kidney damage) and ototoxicity (hearing damage).