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PULMONARY
CCRN
| Question | Answer |
|---|---|
| Normal pressures in the cuff should be kept in which range? | 15 to 20 mmHg |
| Normal arterial Po2 levels (at sea level) fall within which of the following ranges? | 80 to 100 mmHg |
| Normal venous Po2 levels (at sea level) fall within which of the following ranges? | 35 to 40 mmHg |
| Normal arterial hemoglobin saturation (SaO2) falls within which of the following ranges? | > 0.95 |
| Normal mixed venous hemoglobin saturation (Svo2) falls within which of the following ranges? | 0.60 to 0.80 |
| What worsen dynamic compliance? | A.OBESITY B. AIRWAY SECRETIONS C. THIRD-TRIMESTER PREGNANCY |
| VITAL CAPACITY | MAXIMAL INSPIRATION FOLLOWED BY MAXIMAL EXPIRATION |
| DEAD-SPACE VENTILATION | THE AMOUNT OF AIR THAT DOES NOT PARTICIPATE IN GAS EXCHANGE. |
| ALVEOLAR VENTILATION | MINUTE VOLUME MINUS DEAD SPACE VENTILATION |
| NORMAL DEAD SPACE LEVEL | 25% TO 35% |
| THE MOST COMMON CAUSE OF HYPOXEMIA? | INTRAPULMONARY SHUNTS |
| AN ESTIMATE OF INTRAPULMONARY SHUNTING | Pao2/FiO2 ratio |
| FiO2 (fraction of inspired oxygen) | THE PERCENT OF OXYGEN DURING INSPIRATION |
| Normal oxygen tension (Pao2) on exposure to 100% oxygen | 400 to 600 mmHg |
| Intrapulmonary shunting ranges | 0 to 5% |
| Which parameter is used as an estimate of alveolar ventilation (Va)? | Paco2 |
| At which pH is an acidosis generally treated? | < 7.25 |
| How is the pulmonary artery occlusive pressure (PAOP) used in differentiating ARDS from cardiogenic-induced pulmonary edema? | A low PAOP with large intrapulmonary shunts suggests ARDS. |
| Oxygen toxicity is thought to develop with which level of FiO2? | > 50% for longer than 24hrs |
| What is an indication for PEEP therapy? | TO ALLOW REDUCTION IN FiO2 LEVELS |
| PRESSURE-SUPPORT VENTILATION (PSV) differs from synchronized intermittent mandatory ventilation (SIMV) and AMV in which ways? | SIMV and AMV are volume-limited, PSV is pressure-limited. |
| What is a complication of mechanical ventilation and PEEP therapy? | REDUCED CARDIAC OUTPUT |
| What is the highest FiO2 that can generally be achieved with a nasal cannula? | 40% |
| What condition produces both ventilation and perfusion disturbances? | CHRONIC BRONCHITIS OR COPD |
| In a pleural drainage system what indicates an active pleural leak? | BUBBLING IN THE WATER-SEAL CHAMBER |
| What condition may lead to a tension pneumothorax? | CLOSED PNEUMOTHORAX |
| Which finding would be an indication of a ruptured diaphragm? | BOWEL SOUNDS IN THE CHEST |
Created by:
nerdismart
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