Nursing MCQ 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 Nursing MCQ flashcards as text
Malignant hyperthermia (MH) is triggered by which anesthetic agents? Select the combination the perioperative nurse should recognize.
Answer: Succinylcholine and volatile inhalational agents
Malignant hyperthermia is triggered by succinylcholine (a depolarizing neuromuscular blocker) and volatile inhalational anesthetic agents such as halothane, sevoflurane, and desflurane.
When a patient develops suspected MH intraoperatively, what is the PRIORITY nursing action?
Answer: Administer 100% oxygen and notify the attending anesthesiologist
The priority action is to notify anesthesia and provide 100% oxygen; dantrolene is then administered immediately, but it requires a physician order.
Which preoperative skin antiseptic agent is CONTRAINDICATED near the eyes and ears?
Answer: Chlorhexidine gluconate (CHG)
Chlorhexidine gluconate is ototoxic and can cause corneal damage, making it contraindicated for skin preparation near the eyes and ears.
During a thyroidectomy, the surgeon requests a nerve integrity monitor (NIM) endotracheal tube. The perioperative nurse understands this device is used to monitor which structure?
Answer: Recurrent laryngeal nerve
The NIM tube detects electromyographic signals from the vocalis muscle to monitor recurrent laryngeal nerve integrity during thyroid and parathyroid surgery.
A patient receiving spinal anesthesia suddenly develops hypotension, bradycardia, and nausea. The perioperative nurse should recognize these as signs of:
Answer: High spinal block affecting sympathetic fibers
A high or total spinal block causes widespread sympathetic blockade resulting in hypotension, bradycardia, and nausea due to loss of vascular tone.
Which measure BEST prevents surgical site infection (SSI) related to operating room air quality?
Answer: Using laminar airflow systems in orthopedic and implant rooms
Laminar airflow (HEPA-filtered unidirectional airflow) significantly reduces airborne particles and microbial contamination in high-risk implant and orthopedic procedures.
The perioperative nurse documents that a specimen is sent to pathology as a 'frozen section.' What is the PRIMARY purpose of this intraoperative technique?
Answer: To provide rapid diagnosis to guide intraoperative surgical decisions
Frozen section allows rapid histopathological analysis within minutes so the surgeon can make real-time decisions about margins, lymph nodes, or tissue identity during the procedure.