Anesthesia and Sedation Principles Flashcards
7 cards from real CNOR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Anesthesia and Sedation Principles flashcards as text
A patient develops stridor immediately upon extubation. The FIRST priority nursing action is to:
Answer: Apply 100% oxygen and assess airway patency
Stridor indicates partial airway obstruction; immediate application of oxygen and airway assessment are the first priorities.
Ketamine is unique among anesthetic induction agents because it:
Answer: Produces a dissociative anesthetic state with maintained airway reflexes
Ketamine produces dissociative anesthesia while typically preserving airway reflexes and hemodynamic stability, making it useful in trauma settings.
The bispectral index (BIS) monitor is used intraoperatively to:
Answer: Assess depth of anesthesia and reduce awareness risk
BIS monitoring analyzes EEG data to provide a numerical score reflecting depth of anesthesia, helping to prevent awareness under anesthesia.
Which of the following is the MOST reliable sign of adequate reversal of neuromuscular blockade before extubation?
Answer: Train-of-four ratio ≥ 0.9
A train-of-four (TOF) ratio of 0.9 or greater indicates adequate recovery of neuromuscular function and is the gold standard before extubation.
A patient receiving epidural anesthesia for a thoracic procedure suddenly complains of difficulty breathing and bilateral arm weakness. The nurse should suspect:
Answer: Total spinal anesthesia
Total spinal anesthesia occurs when local anesthetic spreads to high cervical levels, causing respiratory muscle paralysis and loss of upper extremity function.
Which of the following medications is used to treat opioid-induced respiratory depression in the PACU?
Answer: Naloxone
Naloxone is a pure opioid antagonist that reverses respiratory depression, sedation, and analgesia caused by opioids.
The nurse assisting with a regional nerve block under ultrasound guidance should be prepared to treat local anesthetic systemic toxicity (LAST) FIRST with:
Answer: Intravenous lipid emulsion 20%
Intravenous lipid emulsion (Intralipid 20%) is the primary treatment for local anesthetic systemic toxicity by acting as a lipid sink.