A patient undergoes axillary block for placement of an arteriovenous shunt in the forearm. Blockade of the musculocutaneous nerve is not achieved. Injection of a local anesthetic at which of the following sites will provide the required sensory block?
(A) Between the tendon of the palmaris longus and flexor carpi radialis
(B) Body of coracpbrachialis muscle
(C) Medial to the brachial artery at the elbow
(D) Proximal to the medial epicondyle against the medial surface of the humerus
(E) Superficial to the pulse of the axillary artery
A 5-month-old infant with tetralogy of Fallot is scheduled for elective inguinal herniorrhaphy. Which of the following would require the operation to be postponed?
A 2.8-kg 8-hour-old infant undergoes laparotomy for a ruptured omphalocele. Following primary closure of the abdominal wall, arterial blood gases are PaO2 40 mmHg (FiO2 0.6), PaCO2 55 mmHg, and pH 7.1. Blood pressure is 30/20 mmHg. After increasing the FiO2, the most appropriate action would be to
(A) obtain a radiograph of the chest immediately
(B) withdraw the endotracheal tube 1 cm
(C) assess the patient for coexisting congenital heart disease
(D) administer lactated Ringer's solution 15 ml/kg