A 27-year-old man with chronic renal failure is to undergo revision of an arteriovenous graft. He insists on general anesthesia. Hemodialysis was completed two hours ago, and serum potassium concentration is now 5 mEq/L. Which of the following statements concerning anesthetic management of this patient is true?
(A) Enflurane is contraindicated
(B) Succinylcholine is contraindicated
(C) Neostigmine will be required in larger than usual dosage
(D) The duration of action of atracurium will be prolonged
(E) The duration of action of propofol will be unchanged
E
In clinical anesthesia practice, the term "informed consent" is best described as a legal concept in which patients
(A) agree to anesthesia care based on full disclosure of facts needed to make the decision intelligently
(B) are told of all possible risks of anesthesia and anesthetic procedures
(C) delegate all decisions regarding anesthesia care to the anesthesiologist
(D) release the physicians from liability
(E) sign global consent forms for surgical procedures that cover the administration of anesthesia care
Which of the following is the most common cause of coagulopathy occurring during massive blood transfusion?
(A) Decreased serum fibrinogen concentration
(B) Decreased serum ionized calcium concentration
(C) Dilutional thrombocytopenia
(D) Disseminated intravascular coagulation
(E) Hypothermia
C
Each of the following is associated with an increased alveolar-arterial oxygen tension difference EXCEPT
(A) advanced age
(B) atelectasis
(C) decreased cardiac output
(D) decreased Fl02
(E) right-to-left intracardiac shunt
D
An 18-year-old woman has knee pain during arthroscopy performed with femoral and sciatic nerve blocks for repair of a torn medial meniscus. The most appropriate management is addition of which of the following nerve blocks?
A 4-year-old child has just undergone a one-hour tonsillectomy with a volatile anesthetic, nitrous oxide, and oxygen. Which of the following will result in the most rapid emergence?