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Anaesthesia > MCQs > Flashcards

MCQs Flashcards

1
Q

A high-volume, low-pressure cuff

A

May not prevent aspiration 

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2
Q

The most common cause of an aesthetic disaster is

A

Circulatory instability

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3
Q

Local anesthetics have their effect at the

A

Membrane 

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4
Q

The administration of atropine may be followed by all of the following, except

A

Angina pectoris

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5
Q

Suxamethonium can cause

A

Histamine release

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6
Q

Myocardial contractility is increased by

A

Adrenaline

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7
Q

Myocardial oxygen consumption is generally tied most closely to

A

Heart rate 

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8
Q

Which of the following effects is not mediated by the alpha1 adrenergic receptor? 

A

Relaxation of the uterus 

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9
Q

Renal clearance of a drug

A

Varies with pH, urine flow rate, and renal blood flow 

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10
Q

Contraindications to NSAIDs include the following, except

A

Gastroesophageal reflux disease 

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11
Q

If 57 year old presents to accident an emergency and a systolic cardiac arrest. Which intervention will most likely result in a good neurologic outcome for this patient

A

Adrenaline 1 mg IV 

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12
Q

A 31 year old, 50 kg male motorcyclist traveling at 100 KM per hour is involved in a motor vehicle accident. He sustains a broken left femur. What maximum volume of blood can be contained in his fractured femur? 

A

2 L

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13
Q

At induction of anesthesia, which agent is least likely to cause hypotension 

A

Ketamine 

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14
Q

A 20 year old patient is intubated, anesthetized and develops a hypertension, tachycardia, and Sweating, when the surgeon makes an incision. What is the least likely cause of the patient’s symptoms

A

Paralysis

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15
Q

An obese 21 year old male presents to the anesthetic clinic for preoperative assessment. Which factor is least likely to predicted difficult intubation.

A

Diabetes mellitus

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16
Q

A three year old, 15 KG child is having local infiltration of an abdominal wound with 2% lidocaine with adrenaline. What is the maximum amount in milliliters that can’t be administered to this child?

A

4.5 mls 

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17
Q

What is the concentration of adrenaline in a 1ml of a 1% lidocaine with 1:200,000 adrenaline? 

A

5 micrograms

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18
Q

Rapid sequence induction will most likely benefit which of the following patient scenarios

A

An emergency patient

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19
Q

Which anesthetic agent is most likely to cause histamine release during anesthesia?

A

Atracurium

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20
Q

Reversible causes of asystolic, cardiac arrest in a 24 year old. Patient include all of the following, except.

A

Hyperglycemia

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21
Q

A needle phobic patient is scheduled for dental extraction under general anesthesia. The patient inquires as to when he should have his last meal. Which of the following is true

A

He can have a solid meal up to 6 hours before surgery

22
Q

A patient is booked for extensive dental work under general anesthesia. Prior to entering the operating room, he mentions that he had a cup of black tea one hour ago. How best should you proceed?

A

Advise the patient that he would have to wait until adequately fasted, before surgery can start

23
Q

A diabetic, hypertensive patient presents for preoperative assessment. She is scheduled for elective dental work on the general anesthesia. On review her blood pressure is 180/90 and her random blood sugar is 280 mg/dL. What should be the next step?

A

Case should be postponed until her hypertension and diabetes are adequately controlled

24
Q

A 50 kg female presents for multiple dental extraction. The maximum safe dose of lidocaine without adrenaline that can be used in this patient is? 

A

150mg

25
Q

As a sedition technique, the following is true, concerning conscious sedation, except 

A

Patient should not respond to a painful stimulus

26
Q

A patient is seen in recovery room, post anesthesia, complaining of severe pain. The anesthetist administers a dose of intravenous morphine. All of the following is true of morphine except

A

Acute use in patients complaining of pain can cause opioid addiction

27
Q

During sedation for removal of an impacted molar, the dentist notices that the patient is snoring loudly, and her oxygen saturation has fallen precipitously to 85%. Concerning pulse oximetry, the following is true, except.

A

Is not necessary when undertaking conscious sedation 

28
Q

A 32 year old having an emergency laparotomy for acute appendicitis had a post induction blood pressure of 65/35mmHg. The drug which least likely attributed to this blood pressure is:

A

Ketamine 

29
Q

Rapid sequence induction is a maneuver using anesthesia to minimize a patient’s risk of aspiration. Which intervention is least likely to aid in the successful performance of the technique?

A

Cis atracurium (suxamethonium and rocuronium

30
Q

What volume of adrenaline diluted in 20 MLS of saline is required to make 1:200000 adrenaline solution

A

0.1 ul or 0.0001ml

31
Q

A 55 year old patient is undergoing a pelvic surgery for ovarian carcinoma in a deep Trendelenburg position. The capnograph trace suddenly stops. The most likely cause of this is.

A

Circuit disconnection

32
Q

A 36 year old ASA patient had ambulatory surgery and awaiting discharge home in the recovery room. Which of the following is not a criterion against discharge?

A

Mild oozing at the surgical wound 

33
Q

A 25 year old Primi gravida had epidural labour analgesia with bupivacaine 

A

Intralipid should always be present in OT when using bupivacaine

34
Q

A 23 year old patient weighing 50 kg needs inguinal hernia repair the maximum dose of lidocaine with adrenaline 5ug/ml that can be used will be

A

15 mils of 2% 

35
Q

Regarding oxygen therapy

A

Increase, in FiO2 may not necessarily guarantee an increase in PaO2

36
Q

Fentanyl citrate

A

May potentially attenuate the hemodynamic response to intubation

37
Q

Pulse oximetry

A

Arterial pulsations are mandatory to detect oxygen saturation 

38
Q

Regarding inhalation anesthetic agents

A

They can potentially cause malignant hypothermia

39
Q

Which of the following is least likely a predictor of potential difficult intubation?

A

Effort intolerance - NYHA Class III

40
Q

Propofol

A

Can produce severe pain on injection

41
Q

The following is most true of sevoflurane

A

Is ideal for daycare surgery 

42
Q

Bupivacaine

A

Manifestation of toxic effects may be cardiac dysrhythmias

43
Q

The purpose of adrenaline as an adjuvant to lidocaine for local anesthesia is

A

All of the above
(to cause vasoconstriction and reduce bleeding.
Reduce the absorption of lidocaine.
To prolong the action of lidocaine.
To reduce the occurrence of toxicity)

44
Q

Nitrous oxide

A

Can provide some analgesia

45
Q

Fentanyl citrate

A

Is more potent than morphine

46
Q

The American society of anesthesiologist ASA physical status

A

ASA class IV means that the patient has a condition that is a threat to life. 

47
Q

In a preoperative assessment of an adult airway

A

Inter incisor distance is a useful predictor of difficult airway

48
Q

The following are anticonvulsants, except

A

Verapamil

49
Q

Premedication is commonly used for the following reasons, except

A

Antioxidant

50
Q

Fitness for discharge from recovery room following general anesthesia requires the following, except

A

Completely dry surgical wound 

Anaesthesia (4 decks)

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