2022.1 Flashcards
A 45-year-old man presents with a history of shortness of breath and the following flow-volume loop is obtained. This is most consistent with
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A 72-year-old female smoker with hypertension presents to the emergency department with a wrist fracture after a fall. She has been increasingly tired and confused over the previous week. Her serum and urine electrolytes are (supplied). The most likely diagnosis is
A) SIADH
B) CSW
C) Hypothyroidism
D) Addison’s
Diuretics
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A 74-year old man complains of chest pain. An electrocardiograph is performed and displayed here. The occluded coronary artery could be the
a) LAD
b) LCx
c) RCA
d) Left main
Left main
The recommended filter grade of a needle to be effective in excluding microorganisms is
a) 0.1 micron
b) 0.2 micron
c) 0.3 micron
d) 0.4 micron
b) 0.2 micron
A patient has severe hypokalaemia and is in cardiac arrest. The Australian Resuscitation Council and the New Zealand Resuscitation Council recommend intravenous potassium should be given as
a) 5 mmol, slow push
b) 5 mmol, bolus
c) 10 mmol, slow push
d) 10 mmol, bolus
e) 30mmol KCl in 1L Nsaline, bolus
b) 5 mmol, bolus
A 75-year-old man has a loud ejection systolic murmur detected on clinical examination before a joint replacement. A focused transthoracic echocardiogram (TTE) detects a calcified aortic valve with a peak aortic jet velocity of 3 m/s. The peak gradient across the aortic valve is
A) 16 mmHg
B) 26 mmHg
C) 36 mmHg
D) 46 mmHg
36 mmHg
The current ANZCA guidelines for preoperative fasting of adult patients state that studies have shown that it is safe to administer
a) Unlimited clear fluids 2 hours prior to OT
b) 800mL clear fluids 2 hours prior to OT
c) 600mL clear fluids 2 hours prior to OT
d) 400mL clear fluids 2 hours prior to OT
e) 200mL clear fluids 1 hour prior to OT
d) 400mL clear fluids 2 hours prior to OT
A two-year-old boy with a history of respiratory tract infection one week previously has just undergone squint surgery. His airway was managed with a size 4.5 mm cuffed endotracheal tube. The surgery was unremarkable. Twenty minutes after extubation he is awake and appears anxious, with stridor and a visible tracheal tug. His oxygen saturation is 96% on room air. The best initial management of this child is to administer
A) PEEP
B) Propofol
C) Fentanyl
D) Suxamethonium
E) Dexamethasone
Dexamethasone
You place a paravertebral catheter for postoperative analgesia at the level of T5 in an adult patient prior to a thoracotomy. Two minutes following the injection of 0.75% ropivacaine 10 mL, the patient becomes bradycardic, hypotensive and apnoeic. The most likely cause of the complication is
A) Anaphylaxis
b) Intravascular injection
c) Intrathecal injection
d) Epidural injection
e) LA mediated hypotension
C) intrathecal injection
A patient is anaesthetised from the awake state to a state of surgical anaesthesia with propofol or a volatile anaesthetic. As the depth of anaesthesia increases, the patient’s electroencephalogram (EEG) will show oscillations that are of
a) Increased amplitude, increase d frequency
b) Increased amplitude, decreased frequency
c) Decreased amplitude, increased frequency
d) decreased amplitude, decreased frequency
b) Increased amplitude, decreased frequency
A 54-year-old woman has a laryngeal mask airway inserted for a surgical procedure. The following day she complains of tongue numbness and abnormal taste over the posterior third of the tongue. The most likely site of the nerve injury is the
a) Recurrent laryngeal nerve
b) Superior laryngeal nerve
c) Glossopharyngeal nerve
d) Facial nerve
e) Trigeminal nerve
Glossopharyngeal nerve
The washing process of modern cell savers for intraoperative blood salvage removes all the following EXCEPT
a) vernix
b) foetal squamous cells
c) foetal red cells
d) amniotic fluid
c) foetal red cells
A patient with a haemopneumothorax has a chest drain in situ, which is attached to a three-bottle underwater seal drain apparatus. The system is attached to wall suction at -80 cmH20. This will cause
a) mediastinal shift
b) massive tissue damge
c) suction to fail
d) suction to work as expected
d) suction to work as expected
You inadvertently place a 7.5Fr central venous catheter into the carotid artery of a patient undergoing an emergency laparotomy for peritonitis. The best course of management is to
a) Remove it and apply pressure
b) Cancel surgery
c) Refer to vascular surgery
d) Use it for fluids only – no medications
Refer to vascular surgery
A patient in atrial fibrillation with a CHA2DS2-VASc score of 2 has presented for elective hip surgery. Warfarin had been ceased for four days preoperatively and on the day before surgery the international normalized ratio (INR) was 2.1. The best course of action at this point is to
A) Cancel surgery
B) Give Vit K
C) Give FFP
D) Repeat INR
Give Vit K
An anaesthetised patient is ventilated and has standard monitoring plus a central venous line. As surgery commences, the line isolation monitor alarms, indicating a potential leakage current of greater than 5 mA from one of the power circuits in use. The most appropriate action is to
a). Individually disconnect each piece of non-essential equipment until problem found
b). Disconnect CVC until problem found
c) ignore alarm
d) resite CVC
Individually disconnect each piece of non-essential equipment until problem found
The dose of hydrocortisone that has equivalent glucocorticoid effect to 8 mg dexamethasone is
a) 24mg
b) 100mg
c) 200 mg
d) 240mg
200 mg
In the World Maternal Antifibrinolytic (WOMAN) trial, tranexamic acid administration within three hours of birth reduced the
a) incidence of bleeding
b) risk of death overall
c) risk of death due to bleeding
d) risk of death due to MI
risk of death due to bleeding
Preperitoneal pelvic packing is a surgical treatment of haemorrhage from a/an
a) surgical misadventure
b) pelvic fracture
c) abdominal stab wound
d) ruptured AAA
b) pelvic fracture
The gauge pressure on a gas cylinder does NOT necessarily represent the contents remaining if the cylinder is filled with
a) O2
b) Air
c) Helium
d) N2O
d) N2O
Maintaining a CO2 pneumoperitoneum at a pressure of 15 mmHg is most likely to lead to
A. Decreased arterial Blood pressure
B. Decreased Heart rate
C. Increased central venous pressure
D. Increased renal blood flow
E. Increased systemic vascular resistance
E. Increased systemic vascular resistance
Of the following, the drug most likely to cause pulmonary arterial vasodilation with systemic arterial vasoconstriction when used in low doses is
Vasopressin
Vasopressin
The amount of fresh frozen plasma that needs to be administered (in mL/kg) to increase plasma fibrinogen levels by 1 g/L is
a. 5 mls/kg
b. 10 mls/kg
c. 15mL/kg
d. 30 mls/kg
c. 15mL/kg from journal of transfusion
30ml/kg as per blue book
You review a patient before major bowel surgery. Using the American Heart Association/American College of Cardiology consensus guidelines, you assess him as being at intermediate risk of a perioperative adverse cardiac event. When explaining this to the patient, this best translates to a numerical risk in the range of
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