Respiratory Masterclass: 15 High-Yield MCQs

15 high-yield, single-best-response MCQs covering respiratory medicine end to end — the attack that fails first-line treatment and the magnesium that follows it, the five-day steroid course with no taper, oxygen titrated to 88–92% while the gas is pending, non-invasive ventilation gated on pH rather than on the carbon dioxide number, the eosinophil that decides who keeps an inhaled steroid, the three Anthonisen symptoms before antibiotics, the age-adjusted D-dimer, the hypotensive embolism lysed before it is scanned, tension pneumothorax diagnosed without a film, alpha-1 antitrypsin deficiency and its basal pattern, the pseudoexudate that reads as an exudate, sixteen hours face-down in severe ARDS, the antifibrotic-first approach to IPF, the self-limiting Löfgren syndrome, and bronchiectasis treated by clearance, culture and a prophylaxis threshold of three. Every question is checked against a named primary source — BTS, BTS/ICS, NICE, GOLD, ESC, PROSEVA, PANTHER-IPF, ADJUST-PE and Light's own criteria — and printed on screen beneath the rationale, so you can verify the claim rather than take it on trust. Where teaching has moved under the author, this video teaches the current guideline and names the retired version: the fixed 500 D-dimer threshold in the elderly, carbon-dioxide-driven NIV decisions, tapers on five-day steroid courses, the prednisone-azathioprine-N-acetylcysteine triple regimen in IPF, and routine systemic steroids for stage I sarcoidosis. Pause on each question, lock your answer before the 6-second timer ends, then read the trap rationale, its source, and the "why the other three are wrong" mini-lesson. TIMESTAMPS & CHAPTERS: 00:00 - Hook: The 15-Question Respiratory Drill 00:27 - Question 1 onwards 00:27 - Q1 [ASTHMA]: LIFE-THREATENING ATTACK 01:35 - Q2 [ASTHMA]: OCS COURSE, NO TAPER 02:30 - Q3 [COPD]: OXYGEN TARGET 03:26 - Q4 [COPD]: NIV THRESHOLD 04:24 - Q5 [COPD]: THE EOSINOPHIL GATE 05:23 - Q6 [COPD]: ANTIBIOTIC CRITERIA 06:21 - Q7 [THROMBOEMBOLISM]: AGE-ADJUSTED D-DIMER 07:16 - Q8 [THROMBOEMBOLISM]: HIGH-RISK EMBOLISM 08:13 - Q9 [PLEURA]: TENSION PNEUMOTHORAX 09:05 - Q10 [EMPHYSEMA]: BASAL PATTERN, LIVER SIGNAL 10:01 - Q11 [PLEURA]: THE PSEUDOEXUDATE 11:01 - Q12 [CRITICAL CARE]: PRONE VENTILATION 12:00 - Q13 [INTERSTITIAL]: IPF FIRST DRUG 12:57 - Q14 [GRANULOMATOUS]: LöFGREN SYNDROME 13:50 - Q15 [AIRWAY]: BRONCHIECTASIS STEPS 14:49 - Final Scorecard & Subject Recap