The nurse is caring for a patient who will undergo a coronary artery bypass graft procedure. What level of care will the patient require immediately post procedure?

Correct Answer: B

Rationale: A coronary artery bypass graft, a major procedure, requires intensive care unit (ICU) monitoring immediately post-op due to prolonged anesthesia and risks like arrhythmias or bleeding. ICU provides advanced oversight (e.g., cardiac monitoring) beyond a medical-surgical unit's capacity. Ambulatory settings suit minor surgeries, not this complexity. The nurse's expectation ensures critical care, aligning with standards for high-risk postoperative recovery.

Correct Answer: D

Rationale: Flash memory is a type of non-volatile storage that retains data without power, commonly used in USB drives and SSDs. 'Secondary storage,' is correct because it serves as an external, long-term storage medium, distinct from a computer's primary memory (RAM), per computer architecture definitions (e.g., Tanenbaum's Structured Computer Organization). 'Input unit,' like keyboards, facilitates data entry, not storage. 'Output unit,' like monitors, displays data, not stores it. 'Internal storage,' typically refers to RAM or cache, which are volatile and primary, unlike flash's non-volatile nature. Flash memory's role in portable, persistent storage—supplementing rather than replacing internal memory—makes D the accurate classification, aligning with its widespread use in modern computing.

Correct Answer: C

Rationale: Informed consent is a legal and ethical process ensuring patients understand and agree to treatment. 'Patient can revoke consent even if he has been booked for surgery,' is correct because consent is voluntary and revocable at any time, per healthcare law (e.g., Schloendorff v. Society of New York Hospital, 1914). 'It can be obtained from a minor,' is false; minors typically require guardian consent unless emancipated. 'It is the duty of the Nurse to obtain consent,' is incorrect; physicians usually secure it, though nurses witness. 'It can be implied for any invasive procedure,' is wrong; implied consent applies only in emergencies. The patient's right to withdraw consent reflects autonomy, making C the accurate answer, grounded in legal precedents.

Correct Answer: C

Rationale: Intravenous (IV) administration delivers drugs directly into the bloodstream, bypassing certain processes. 'Bioavailability is 85%,' is correct as not true because IV achieves 100% bioavailability, not 85%, since there's no absorption barrier (e.g., Katzung's Pharmacology). 'First pass is avoided,' is true, skipping liver metabolism. 'No gastric manipulation,' is true, avoiding digestion. 'Desired blood concentration is achieved,' is true, allowing precise dosing. The 85% figure applies to routes like oral with losses, not IV's complete delivery, making C the false statement, grounded in pharmacokinetic principles.

Correct Answer: A

Rationale: Inhalation anesthesia systems vary by gas flow and rebreathing. 'Semiclosed system,' is correct as the most widely used, balancing efficiency and safety with partial rebreathing (e.g., circle system), per Miller's Anesthesia. 'Closed system,' fully recycles gases, less common due to complexity. 'Semiopen system,' is a misnomer; it's not standard. 'Open system,' (e.g., mask without rebreathing) is rare today. Semiclosed systems' prevalence in modern operating rooms, optimizing gas use and monitoring, makes A the precise answer.