An 18-year-old patient with hemophilia A is scheduled for inguinal hernia repair. Preoperatively, factor VIII concentration is 60% of normal. The most appropriate management is administration of
(A) fresh frozen plasma
(B) cryoprecipitate
(C) factor VIII concentrate
(D) vitamin K
(E) none of the above
E
Each of the following conditions is a complication of mediastinoscopy EXCEPT
Which of the following would be most likely to result in neonatal depression when administered to a healthy parturient during an uncomplicated labor and vaginal delivery?
(A) Nitrous oxide 60% in oxygen supplemented with halothane 0.5% for 10 minutes before delivery
(B) Ketamine 20 mg intravenously 30 minutes before delivery
(C) Meperidine 100 mg intramuscularly 2 hours before delivery
(D) Thiopental 100 mg intravenously 30 minutes before delivery
(E) Nitrous oxide 60% in oxygen supplemented with enflurane 0.7% for 10 minutes before delivery
A patient develops urticaria and pruritus while receiving a blood transfusion in the PACU. Blood pressure and heart rate are unchanged from pretransfusion values. The most appropriate action is administration of
A previously healthy 26-year-old man sustains massive soft tissue injury in a motor vehicle accident. He appears to be well for 48 hours after initial resuscitation, then develops marked tachypnea. Arterial blood gas analysis would be most likely to show which of the following values? (pH, PaCO2, PaO2, FiO2)
(A) 7.53 60 75 .21
(B) 7.12 25 110 .30
(C) 7.09 60 90 .40
(D) 7.53 25 55 .80
(E) 7.28 40 195 .80
D
When using a Venturi face mask with a reservoir bag
(A) a known constant FiO2 is delivered
(B) the reservoir bag ensures predictable FiO2 while conserving fresh gas flow
(C) low fresh gas flows will not decrease FiO2
(D) the system prevents hypocarbia during tachypnea
Monitoring of a patient with a closed head injury shows the following pressures: Intracranial pressure 30 mmHg, Central venous pressure 5 mmHg, Mean arterial pressure 65 mmHg, Peak airway pressure 25 cmH,0. The cerebral perfusion pressure is