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NEW QUESTION 36
You are conducting a study of children presenting with febrile convulsions. As pari of your data collection you record their temperature in degrees Celsius on arrival Which is the best description of this type of data?
- A. Ordinal
- B. Ratio
- C. Interval
- D. Discrete
- E. Nominal
Answer: A
NEW QUESTION 37
A comatose patient has a respiratory rate of live breaths per minute following an overdose of heroin He receives naloxone and his respiratory rate rapidly improves to 16 breaths per minute Which component of arterial blood gas sampling is most likely to rapidly decrease following this intervention?
- A. PaC02
- B. pH
- C. Pa02
- D. HC03
- E. Base Excess
Answer: E
NEW QUESTION 38
A 45 year old woman requires procedural sedation for a dislocated shoulder She has recently eaten a fatty meal Which substance is most likely to be secreted when the food reaches the small intestine''
- A. Gastrin
- B. Vasoactive intestinal peptide
- C. Cholecystokmin
- D. Secretin
- E. Gastrointestinal peptide
Answer: C
NEW QUESTION 39
A two year old child is diagnosed with meningitis likely due to Neisseria meningitidis A medical student asks you why this organism is able to cross the blood brain barrier more easily than other pathogens To which characteristic is your explanation most likely to refer?
- A. Attachment using haemagglutmin antigen
- B. Expression of Protein A
- C. IgA protease production
- D. Adhesins on the fimbriae
- E. Binding to CD4 antigen
Answer: D
NEW QUESTION 40
A 55 year old woman is found to have clinical and biochemical features of cholestatic jaundice. You think her jaundice might be caused by one of her medications.
Which medication is the most likely cause of her jaundice?
- A. Phenytoin
- B. Thyroxine
- C. Co-amoxiclav
- D. Aspirin
- E. Paracetamol
Answer: C
NEW QUESTION 41
A 28 year old woman with a dislocated left shoulder has altered sensation along the radial aspect of her left forearm and loss of flexion at the elbow and wrist Injury at which location of the brachial plexus best explains her neurological symptoms?
- A. Lateral cord
- B. Upper trunk
- C. Lower trunk
- D. Posterior cord
- E. Medial cord
Answer: A
NEW QUESTION 42
A 40 year old woman with history o! anorexia, presents with sudden onset of confusion, loss of balance and a wide based gait. Which medication is most likely to be prescribed in the early stages of her treatment?
- A. Glutathione
- B. Ascorbic acid
- C. Vitamin D
- D. Thiamine
- E. Cyanocobalamin
Answer: D
NEW QUESTION 43
A 30 year old woman attends the ED with a worsening headache and tight periorbital pain over the last (ew hours You suspect cavernous sinus thrombosis Her right eye has ptosis, mydriasis and is deviated laterally and downward Which nerve is most likely to be affected?
- A. Optic
- B. Trigeminal
- C. Trochlear
- D. Oculomotor
- E. Abducens
Answer: D
NEW QUESTION 44
A patient is brought in unconscious following a collapse and a subsequent CT shows a pontine haemorrhage Which clinical tindmg best describes what you expect on examination of the eyes?
- A. Deviation of eye laterally and downwards
- B. Loss of direct light reflex
- C. Ptosis of the eyelids
- D. Convergent squint with failure to abduct
- E. Gaze deviation to affected site
Answer: D
NEW QUESTION 45
A patient presents with an arrhythmia and as you are treating them you discuss with a student the depolarisation phase of the cardiac action potential Which change initiates this phase of the action potential?
- A. Closure of sodium channel
- B. Closure of potassium channel
- C. Opening of calcium channel
- D. Opening of potassium channel
- E. Opening of sodium channel
Answer: E
NEW QUESTION 46
A 20 year old man presents lo the ED with a slab wound to the antecubital fossa Exploration of the wound reveals a large nerve has been transected Which function is most likely to be preserved on clinical examination'?
- A. Flexion of the proximal interphalangeal joints
- B. Flexion of the distal interphalangeal joints
- C. Flexion of the wrist
- D. Abduction of the little finger
- E. Opposition of the thumb
Answer: D
NEW QUESTION 47
A 53 year old man on anticoagulation presents with pain over his anterior abdomen following an episode of coughing A CT scan identifies an isolated haematoma within the rectus sheath above the arcuate line Which artery is most likely to have been injured?
- A. Superior epigastric
- B. Superficial circumflex
- C. Inferior epigastric
- D. Superficial epigastric
- E. Deep circumflex
Answer: A
NEW QUESTION 48
A16 year old girl is diagnosed with nephrotic syndrome
What is the most likely mechanism responsible for generalised oedema in this condition?
- A. Venous obstruction
- B. Arterial occlusion
- C. Capillary hydrostatic pressure
- D. Lymphatic obstruction
- E. Oncotic pressure
Answer: E
NEW QUESTION 49
A 14 year old boy presents after a bicycle accident He has a suspected pelvic fracture and the cremasteric reflex is absent Which nerve is most likely to be affected1?
- A. Femoral
- B. Iliohypogastric .
- C. Genitofemoral
- D. Lateral femoral cutaneous
- E. Subcostal
Answer: C
NEW QUESTION 50
A four year old girl presents with a fever Her skin feels warm to touch What is the most likely mechanism of effective thermoregulation?
- A. Increased sympathetic supply to cutaneous vessels
- B. Reduced blood volume in cutaneous vessels
- C. Cutaneous vasoconstriction
- D. Reduced blood velocity in cutaneous vessels
- E. Increased cutaneous blood pressure
Answer: A
NEW QUESTION 51
A patient presents with a fracture to the mid-clavicle after a fall The medial part of the clavicle is displaced superiorly Which muscle is most likely to cause this displacement?
- A. Platysma
- B. Sternocleidomastoid
- C. Pectoralis major
- D. Trapezius
- E. Scalenus anterior
Answer: C
NEW QUESTION 52
A 20 year old woman complains of loss of taste from the posterior part of her tongue She is two days post tonsillectomy Which nerve is most likely damaged?
- A. Vagus
- B. Chorda tympanae
- C. Hypoglossal
- D. Glossopharyngeal
- E. Lingual
Answer: D
NEW QUESTION 53
You are discussing the different muscles within the medial thigh and movements at the hip joint with a medical student. Which muscle within this compartment is most likely to be involved in hip extension?
- A. Adductor longus
- B. Adductor magnus
- C. Adductor brevis
- D. Gracilis
- E. Pectineus
Answer: B
NEW QUESTION 54
A patient presents with unilateral tongue swelling with no additional signs of allergic reaction She is on multiple cardiac medications Which drug is most likely to have caused these symptoms?
- A. Atenolol
- B. Bendroflumethiazide
- C. Aspirin
- D. Simvastatin
- E. Lisinopril
Answer: E
NEW QUESTION 55
You are caring for a 68 year old patient with known heart failure and significant tachypnoea Stimulation of which receptor type is most likely to cause this increase in respiratory rate?
- A. Chemoreceptors
- B. Mechanoreceptors
- C. Juxtacapillary receptors
- D. Irritant receptors
- E. Stretch receptors
Answer: E
NEW QUESTION 56
A 20 year old woman with known diabetes presents with hypoglycaemia She was given glucagon with good recovery. Which cells ot the pancreas normally secrete this hormone?
- A. Alpha
- B. Exocrine
- C. Gamma
- D. Beta
- E. Delta
Answer: A
NEW QUESTION 57
A premature baby is born at 28 weeks' gestation in your ED. They are at risk of respiratory distress syndrome due to lack of surfactant What best describes the composition of this substance?
- A. Sphingolipid
- B. Phospholipid
- C. Fatty acid
- D. Glycolipid
- E. Phosphoglyceride
Answer: B
NEW QUESTION 58
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