
AAPTA PRE-WRITTEN EXAM PRACTICE SERIES FOR APC
Quiz by Krushit Patel
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6 questions
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- Q1Case 1: 35 year old man with asthma. - wheezy since birth with triggering agents including upper respiratory tract infections, exercise, dog hair, and house dust mites. - admitted to hospital today by his general medical practitioner because of worsening symptoms and difficulty taking his medications. - currently using two metered dose inhalers with a spacer for the delivery of his medications - Salbutamol (Ventolin), a sympathomimetic (B2-agonist) and beclomethasone dipropriate (Becotide) - persistent, non-productive cough, expiratory wheezes and laboured breathing - appears flushed and very anxious and is having difficulty completing sentences. Arterial blood gases on admission • SaO2 = 94 (FiO2 = 0.4) • PaO2 (on O2) = 10 kPa (135mm Hg) • PaCO2 (on O2) = 4.1 kPa (31mmHg) • pH = 7.47 On examination • Heart Rate (HR) = 100beats /min • Temperature = 37.8 oC • Respiratory Rate (RR) = 28 breaths/min (shallow, prolonged expiration; short, gasping inspiration) • FEV1/FVC ratio = 65% • Auscultation – reduced breath sounds throughout the lung fields with widespread expiratory wheeze 1. The patient’s chest X-ray is likely to show evidence ofan enlarged hearthypoinflationhyperinflationmediastinal shift120s
- Q22. The patient’s FEV1/FVC ratio indicates he hassevere airway obstructiona restrictive airway patternmoderate airway obstructionan obstructive airway pattern120s
- Q33. What is the rationale for using a spacer for the delivery of Becotide in the patient’s case?because four or five puffs of Becotide can be inserted into the spacer for each breathto reduce the possibility of oral candidiasis and dystoniato increase inertial impaction in the large airwaysbecause a spacer makes it easier for the person to inhale at a fast inspiratory rate120s
- Q44. Becotide has which of the following actions?all of the above are correctit decreases microvascular permeabilityit is an anti-inflammatory steroidit decreases bronchial hyperreactivity120s
- Q55. Sympathomimetic drugsincrease myocardial contractilitymay produce bronchospasm and peripheral vasoconstriction in low dosesall of the above are correctbronchodilate the large airways120s
- Q66. Which of the following is true with regard to the patient’s inhaled medications?breath holding increases inertial impaction of the particlesrapid inspiration increases the inertial impaction of the particlesparticles between 5 and 10 ìm are deposited in the small airwaysgravitational sedimentation is time-dependent120s