10 Random Questions
Which of the following findings is most likely in an 85-kg 30-year-old man who is breathing spontaneously through 6-mm endotracheal tube?
- (A) Decreased PetCO2
- (B) Decreased SpO2
- (C) Increased minute ventilation
- (D) Increased respiratory rate
- (E) Increased tidal volume
In which of the following clinical circumstances does down-regulation of beta-adrenergic receptors occur?
- (A) Chronic congestive heart failure
- (B) Hypothyroidism
- (C) Long-term clonidine administration
- (D) Long-term metoprolol administration
- (E) Stable angina
Delirium produced by high doses of atropine can be reversed by intravenous injection of
- (A) diphenhydramine
- (B) flumazenil
- (C) naloxone
- (D) neostigmine
- (E) physostigmine
Upon removal of the epidural catheter after uneventful labor and delivery in a 25-year-old primiparous woman, approximately 1.2 cm of the Teflon catheter is left behind in the epidural space. The patient is informed of the complication. The most appropriate management is
- (A) immediate surgical removal
- (B) prophylactic antibiotics
- (C) lumbar myelogram
- (D) monthly neurologic examinations
- (E) no intervention
If administered prior to induction of anesthesia, which of the following drugs is most likely to cause tachycardia?
- (A) Fentanyl
- (B) Meperidine
- (C) Midazolam
- (D) Morphine
- (E) Sufentanil
The flow-volume loop indicated by the "X" is characteristic of
- (A) asthma
- (B) bronchiectasis
- (C) emphysema
- (D) pulmonary fibrosis
- (E) tracheal stenosis
Which of the following statements concerning banked blood is true?
- (A) Red blood cells preserved with CPDA-1 have a shelf life of approximately 21 days
- (B) Packed red blood cells deliver oxygen normally immediately after administration
- (C) Packed red blood cells contain most of the leukocytes present in the donated unit
- (D) Citrate is used as a source of energy for whole blood
- (E) Stored whole blood contains all coagulation factors except II and VIII
Compared with adults, neonatal respiratory function is characterized by
- (A) a lower ratio of dead space to tidal volume
- (B) a more compliant chest wall
- (C) a more positive intrapleural pressure at end-expiration
- (D) less susceptibility to atelectasis
- (E) the same oxygen requirement per kilogram of body weight
The twitch responses shown are from a healthy 80-kg patient anesthetized with fentanyl and nitrous oxide. Relaxant drugs X and Y are most likely
- (A) X: atracurium 30 mg, Y: vecuronium 4 mg
- (B) X: atracurium 30 mg, Y: vecuronium 8 mg
- (C) X: pancuronium 4 mg, Y: pancuronium 8 mg
- (D) X: vecuronium 4 mg, Y: atracurium 30 mg
- (E) X: vecuronium 4 mg, Y: pancuronium 8 mg
Each of the following statements concerning the activated clotting time (ACT) is true EXCEPT:
- (A) The ACT is more sensitive than the activated partial thromboplastin time (APTT) to blood heparin concentration
- (B) The ACT is prolonged if the specimen is not warmed during the assay
- (C) The ACT should be greater than 300 sec before initiating cardiopulmonary bypass
- (D) Hypofibrinogenemia may prolong the ACT after cardiopulmonary bypass
- (E) Whole blood is used for measurement of the ACT