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FULL REVIEW CRT Exam 2025/2026 | 130+ Solved Questions on Ventilators, ABGs, Oxygen Therapy, Airway Management & Lung Volumes

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This complete CRT (Certified Respiratory Therapist) exam review for 2025/2026 features over 130 solved questions covering all major exam categories. Topics include arterial blood gases (ABGs), oxygen therapy delivery devices, mechanical ventilation modes and troubleshooting, airway clearance, suctioning, lung volumes, acid-base balance, breath sounds, respiratory pharmacology, and interpretation of chest x-rays and spirometry. Ideal for students preparing for the NBRC CRT credentialing exam. Keywords: CRT exam, ABG analysis, oxygen delivery, nasal cannula, non-rebreather, CPAP, BiPAP, mechanical ventilation, PEEP, tidal volume, FiO2, airway suctioning, intubation, tracheostomy, respiratory rate, breath sounds, crackles, wheezing, respiratory alkalosis, metabolic acidosis, lung compliance, vital capacity, inspiratory reserve, spirometry, chest x-ray interpretation, flow rate, pharmacology, bronchodilators, mucolytics, ventilator alarms, NBRC exam prep

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FULL REVIEW CRT/RRT (NBRC)
2025/2026 Exam Questions and Verified
Answers | Already Graded A+



Ascites - 🧠ANSWER ✔✔accumulation of fluid in the abdomen caused by LIVER

FAILURE


Venous distention - 🧠ANSWER ✔✔-occurs with CHF


-seen with obstructive patients (seen in exhalation phase)


Capillary refill - 🧠ANSWER ✔✔-indication of peripheral circulation


-Normal < 3 seconds


Jaundice skin color - 🧠ANSWER ✔✔-increase in bilirubin.


-mostly in face and trunk


Bradypnea (oligopnea) - 🧠ANSWER ✔✔-decreased respiratory rate (<12bpm)

variable depth and irregular rhythm


COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED

,Hyperpnea - 🧠ANSWER ✔✔-increased rate, depth, with regular rhythm


Cheyne-Stokes - 🧠ANSWER ✔✔-gradually increasing then decreasing rate and

depth in a cycle lasting from 30 - 180 secs, with apnea up to 60 secs




-increased ICP, meningitis, overdose


Biots - 🧠ANSWER ✔✔-increased rate and depth with irregular periods of apnea




-CNS problem, head/brain injury


Kussmaul's - 🧠ANSWER ✔✔-increased rate, depth, irregular rhythm, breathing

sounds labored

-Raspy voice


Apneustic - 🧠ANSWER ✔✔prolonged gasping inspiration followed by extremely

short, insufficient expiration




-respiratory center problems, trauma, tumor


COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED

,cachectic - 🧠ANSWER ✔✔muscle atrophy/loss of muscle tone


retractions - 🧠ANSWER ✔✔-chest moves inward during inspiratory efforts instead

of outward

-blocked airway in adults = INTUBATE

-RDS in infants


Character of cough - 🧠ANSWER ✔✔-dry, non-productive cough may indicate

tumor in the lungs or asthma

-productive cough may indicate infection


evidence of difficult airway - 🧠ANSWER ✔✔-short receding mandible (chin)


-enlarged tongue (macroglossia)

-bull neck

-limited neck range-of-motion


pulsus paradoxus - 🧠ANSWER ✔✔-pulse/blood pressure varies with respiration.

may indicate severe air trapping (status asthmaticus or cardiac tamponade)


tactile fremitus - 🧠ANSWER ✔✔-vibrations felt by hand on chest wall


COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED

, -vocal fremitus: voice vibrations on the chest wall

-pleural rub fremitus: grating sensation due to roughened pleural spaces

-Rhonchial fremitus(palpable rhonchi): secretions in airways


Crepitus - 🧠ANSWER ✔✔-bubbles of air under skin that can be palpated and

indicates subcutaneous emphysema


Resonant percussion - 🧠ANSWER ✔✔-hollow sound


-normal lungs


Flat percussion - 🧠ANSWER ✔✔-heard over sternum, muscles, or areas of

atelectasis


Dull percussion - 🧠ANSWER ✔✔-heard over fluid-filled organs such as heart or

liver (thudding)

-pleural effusion or pneumonia


Tympanic percussion - 🧠ANSWER ✔✔-heard over air-filled stomach.


-drum-like sound and when heard over lung = increased volume




COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED

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