Anaesthesia revision lecture

1. What degree of dehydration would be evident in this case: Loss of >8% body weight (>7L), anuria, CVS collapse

a) Normal
b) Mild
c) Moderate
d) Severe
e) Total
2. How many grams of lignocaine would be in 1 Litre of a 1% solution?

a) 10
b) 1
c) 0.1
d) 0.01
e) 100
3. What degree of dehydration would be evident in this case: Loss of <4% body weight (1-2L), loss of skin turgor, dry mucus membranes

a) Severe
b) Mild
c) Total
d) Moderate
e) Normal
4. How many mgs of lignocaine would be in 10ml of a 1% solution?

a) 0.01
b) 1
c) 0.1
d) 100
e) 10
5. What are the daily potassium requirements of an adult?

a) 5 mmol/kg
b) 2 mmol/kg
c) 1 mmol/kg
d) 3 mmol/kg
e) 4 mmol/kg
6. A term used to refer to the abnormal accumulation of fluid in; obstructed loops of bowel or abdominal, pleural, or pericardial cavities. This can occur secondary to tissue trauma from surgery and the subsequent inflammation.

a) Third space losses
b) Hazardous losses
c) Insensible losses
d) Obligatory losses
e) Extravasory losses
7. A 54 year old presents with a history of vomiting, lethargy and generalised weakness. Examination reveals modest hypertension and tachypnoea. Blood gas results are: On air, pH 7.37, pO2 11.2kPa, pCO2 2.9kPa, HCO3- 12mmol/l

a) Metabolic Alkalosis
b) Metabolic Acidosis
c) Respiratory alkalosis
d) Respiratory Acidosis
e) Normal
8. 35 year old has sustained multiple injuries in an RTA. Chest examination has revealed a flail segment. Blood gas results are: On 15l/min oxygen, pO2 8kPa, pH 7.24, pCO2 8kPa, HCO3- 25mmol/l

a) Respiratory alkalosis
b) Normal
c) Metabolic Acidosis
d) Respiratory Acidosis
e) Metabolic Alkalosis
9. What degree of dehydration would be evident in this case: Loss of 5-8% body weight (4-6L), oliguria, tachycardia, hypotension

a) Severe
b) Moderate
c) Normal
d) Total
e) Mild
10. How many grams of lignocaine would be in 100ml of a 1% solution?

a) 0.1
b) 10
c) 100
d) 0.01
e) 1
11. The minimal amount of fluid loss from the body that can occur is referred to as the ... and refers mainly to water lost through urine

a) Insensible losses
b) Third space losses
c) Obligatory losses
d) Extravasory losses
e) Hazardous losses
12. With regards to fluid and electrolyte requirements in a child, which of the following is FALSE?

a) Give 100mL/kg/24hrs for 1st 10kg of weight
b) Give 2-4 mmol sodium /kg/24 hrs
c) Give 20mL/kg/24hrs for weight above 20kg
d) Give 50mL/kg/24hrs for 2nd 10kg of weight
e) Give 4-6 mmol potassium /kg/24 hrs
13. A dispersion or suspension of finely divided particles in a continuous medium

a) hypotonic
b) isotonic
c) colloid
d) hypertonic
e) crystalloid
14. A 62 year old man is referred for investigation of persistent vomiting and weight loss. On examination he is dehydrated and cachectic. Blood gas results are: On air, pO2 12kPa, pH 7.52, pCO2 6.5kPa, HCO3- 36mmol/l

a) Metabolic Alkalosis
b) Respiratory alkalosis
c) Respiratory Acidosis
d) Normal
e) Metabolic Acidosis
15. What are the daily water requirements of an adult?

a) 30 - 40 ml/kg
b) 40 - 50 ml/kg
c) 5 - 10 ml/kg
d) 10 - 15 ml/kg
e) 20 - 30 ml/kg
16. With regards to fluids, which of the following statements is FALSE?

a) Blood is a colloid
b) NaCl 0.9% without glucose expands extracellular fluid only
c) 5% dextrose solution remains in the intravascular compartment longer than NaCl 0.9%
d) When treating DKA, use 0.9% saline initially
e) Colloids are theoretically more effective in resuscitation
17. A 22 year old develops chest pain & dyspnoea after an argument with her husband’s boyfriend. She is tachypnoeic with signs of tetany. Blood gas results are: On 35% oxygen, pO2 18kPa, pH 7.52, pCO2 3.5kPa, HCO3- 22mmol/l

a) Respiratory alkalosis
b) Metabolic Acidosis
c) Metabolic Alkalosis
d) Respiratory Acidosis
e) Normal
18. How many mgs of lignocaine would be in 1ml of a 1% solution?

a) 1
b) 10
c) 0.1
d) 100
e) 0.01
19. What are the daily sodium requirements of an adult?

a) 1-2 mmol/kg
b) 2-4 mmol/kg
c) 4-8 mmol/kg
d) 3-6 mmol/kg
e) 5-10 mmol/kg
20. This term refers to water loss due to: transepidermal diffusion (water that passes through the skin and is lost by evaporation), and evaporative water loss from the respiratory tract

a) Obligatory losses
b) Extravasory losses
c) Hazardous losses
d) Insensible losses
e) Third space losses
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