MCQ 2 Flashcards

(56 cards)

1
Q

In the resuscitation of a 55 year old man in asystolic cardiac arrest, it is appropriate to:

A

Start CPR - 5 cycles of 15:2 at a rate of at least 100/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A cardiac arrest patient arrives to the Emergency Department with PEA. The ECG monitor shows
a rate of 30 beats per minute. CPR continues and IV access is established. Which medication is
most appropriate to give next?

A

Epinephrine 1 mg IV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a common but sometimes fatal mistake in cardiac arrest management?

A

Prolonged interruptions in chest compressions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Hypothermia is associated with:

A

Increased postoperative infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A patient with COPD with an acute exacerbation of his symptoms suffers a cardiorespiratory
arrest in the A&E. You would now give him oxygen using:

A

24% venturi mask

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A 58 year old known alcoholic who has had frequent admissions to hospital was found on the corridor just outside the busy A&E department. He was unresponsive with no pulse so cardiopulmonary resuscitation was started immediately. He was found to be in ventricular fibrillation. The LEAST likely cause of the cardiac arrest could be:

A

Hypothermia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Capnography may be useful in the following situations EXCEPT:

A

Decreased oxygen saturation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A 3 year old child, weighing 15kg, had bilateral hernia repair. Surgeon requests local anaesthesia
for wound infiltration. The maximum dose of plain bupivacaine that can be used will be:

A

12 mL of 0.25%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A 75 kg 1.8 m tall basketball player sustained a laceration to his leg during practice. The wound
is clean and requires suturing under local anaesthesia. The emergency department only has 1.5%
lignocaine available. A 1.5% solution of lignocaine has:

A

15 mg per mL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which of the following induction agents has a bronchodilator effect?

A

Ketamine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A 6 year old is having squint surgery. Whenever the ocular muscle is pulled, the patient develops
bradycardia. Which drug do you choose to manage this event?

A

Atropine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A pre-med student accompanies her mother and 5 year old brother to the Anaesthesia Assessment
Clinic. He is booked for an umbilical hernia repair. She has questions about the planned
anaesthetic technique. Which statement regarding inhalation anaesthetic agents is TRUE?

A

They may potentiate the effect of neuromuscular blocking agents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

ECG may be useful in the following situations EXCEPT:

A

Bronchospasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Pulse oximetry

A

Is less accurate when oxygen saturation is less than 70%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A 55 year old poorly controlled asthmatic patient is under GA for a laparotomy and pelvic
exenteration. The surgeon is having difficulty resecting the ovarian carcinoma. The capnograph
trace shows an elevated inspired CO2 level. The likely cause is:

A

Exhaustion of soda lime

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Regarding oxygen therapy:

A

Nasal cannulae depend on patient characteristics for delivering FiO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Pre-oxygenation is performed for all the reasons EXCEPT:

A

It prevents diffusion hypoxia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Postoperative nausea and vomiting may be treated with all of the following EXCEPT:

A

Ibuprofen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A 73 year old woman is booked for a nephrolithotomy. She has had two previous uneventful
general anaesthetics in the past for LSCS. Her youngest child is 35 years old. A potential difficult
intubation may be anticipated by all EXCEPT:

A

She has congestive heart failure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A 50 year old man is booked for a partial thyroidectomy as an elective procedure. The potential
difficulty in performing endotracheal intubation may be anticipated by all EXCEPT:

A

He is edentulous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A 30 year old G2P1 patient with mild preeclampsia requests an epidural for anaesthesia for her
caesarean section. Which statement about epidural anaesthesia is TRUE:

A

It may cause urinary retention

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Bupivacaine:

A

Compared to lignocaine has more cardiovascular toxicity than neurotoxicity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

A 35 year old man has a diagnosis of a right tension pneumothorax from a flail chest following a
motor vehicle accident. What is the appropriate immediate management?

A

Large cannula in 2nd right intercostal space mid clavicular line

24
Q

Midazolam:

A

May cause anterograde amnesia

25
Propofol:
Is one of the ideal drugs for infusion
26
Fentanyl citrate:
May attenuate the hemodynamic response to intubation
27
Suxamethonium:
May cause postoperative myalgia
28
A 20 year old university student is having a breast reduction done under general anaesthesia. The plastic surgeon proceeds to infiltrate the operation site with adrenaline to decrease blood loss. Infiltration with adrenaline during anaesthesia may easily produce cardiac dysrhythmias with:
Halothane
29
The following statement about vecuronium is TRUE:
Its effect can be reversed by neostigmine
30
Hartmann’s solution (Ringer’s lactate) contains:
2 mmol/L Ca2+
31
Administration of a large volume of normal saline (0.9%) is likely to produce:
Hyperchloraemic metabolic acidosis
32
Which of the following is an amide local anaesthetic drug?
Lignocaine
33
A 17 year old student is booked for a ureteroscopy under general anaesthesia. He is a known epileptic since the age of 5 years, is compliant with his medication, but last had a seizure 6 months ago. In view of his history, which anaesthetic agents should be avoided?
Enflurane
34
The following drugs may cause hypotension by histamine release:
Atracurium
35
Which of the following about pulse oximetry is TRUE?
The presence of methaemoglobin in blood (metHb) may affect it
36
With regard to capnography:
The normal range is approximately 35-45 mmHg
37
With regard to haemorrhage:
Beta-blockers may mask the early signs of hypovolemic shock
38
What cardiovascular changes can occur with the Trendelenberg (head-down) position?
Increased cardiac output
39
A 79 year old diabetic hypertensive man with a hiatus hernia is booked for an above knee amputation. The anaesthetist is considering performing spinal anaesthesia for the procedure. With regard to spinal anaesthesia, it:
Causes hypotension
40
A 76 year old diabetic patient with pneumonia is admitted to hospital in extremis, needing intubation. The following statement about intermittent positive ventilation is FALSE:
It is easily tolerated without sedation
41
A patient is intubated and ventilated on intensive care after being admitted with shortness of breath. He has a blood pressure of 70/40 mmHg, heart rate 120 bpm, central venous pressure 20mmHg and a pulmonary capillary wedge pressure of 25mmHg. He has a PaO2 of 60mmHg (normal > 300mmHg) on a FiO2 of 1.0. What is the likely diagnosis?
Pulmonary oedema
42
A cardiac arrest patient arrives to the Emergency Department with no pulse and an ECG monitor shows a rate of 30 beats per minute. CPR continues and IV access is established. Which medication is most appropriate to give next?
Epinephrine 1 mg IV
43
A patient presents to accident and emergency with a head injury. His eyes open to pain, he is making incomprehensible sounds, his left upper limb demonstrates flexing and the right upper limb demonstrates localising. What is his GCS?
9
44
A 2.5 kg premature neonate intraoperatively has a nasal temperature of 34 degrees Celsius. What is the most likely postoperative complication experienced in this age group?
Increased oxygen uptake
45
Capnography may be least useful in the following situation:
Decreased oxygen saturation
46
A patient is admitted through accident and emergency with a self inflicted stab wound to his groin. His heart rate is 110 bpm, blood pressure 110/90 mmHg, respiratory rate of 20 breaths per minute and is mildly anxious. What is the likely blood loss?
750 - 1500 mL
47
A 3 year old child, weighing 15kg, had bilateral hernia repair. Surgeon requests local anaesthesia for wound infiltration. The maximum dose of plain bupivacaine that can be used will be:
6 mL of 0.5%
48
An epidural for Caesarean section is “topped up” with 20 ml of 2% lignocaine and 100 micrograms of fentanyl. Shortly afterwards, the patient becomes agitated and then loses consciousness. She then develops bradycardia and suffers a tonic-clonic seizure. She has a past history of epilepsy and her pregnancy was complicated by pregnancy-induced hypertension. What is the most likely diagnosis?
Local anaesthesia toxicity
49
A 93 year old lady is scheduled to undergo fixation of a fractured neck of femur and you review her on the ward. Which of the following is not an acceptable reason for postponing surgery?
Reversible coagulopathy
50
With regard to capnography:
The normal range is approximately 35-45 mmHg
51
Postoperative nausea and vomiting is least likely treated by which agent in the recovery room?
Propofol
52
What cardiovascular changes can occur with the Trendelenberg (head-down) position?
Increased cardiac output
53
How much adrenaline does 2% lignocaine with 1:200000 adrenaline contain?
5 mcg/mL
54
A 24 year old patient undergoes diagnostic laparoscopic surgery for suspected endometriosis. Which of the following physiologic complications is LEAST likely to occur?
Increase in renal blood flow
55
Suxamethonium
Causes postoperative myalgia
56
The following statement about vecuronium is true:
Its effect can be reversed by neostigmine