Pulmonary Exam Flashcards
Lung Volumes:
Volumes Vs Caps (adding 2 things)
ALL FIRST: CHART
SEE PICS
Lung Volumes:
Volumes:
Tidal Volume
Normal Breathing
500 ml
Lung Volumes:
Volumes:
Tidal Volume
Normal Breathing
500 ml
Lung Volumes:
Volumes:
Inspiratory Reserve Volume
IRV
“Take deep breathe in, then breathe in AGAIN as much as you can”
- More air IN AFTER normal inhale
- 5-6x TV
Lung Volumes:
Volumes:
Expiratory Reserve Volume
ERV
“Breathe OUT, then breathe out AGAIN as much as possible”
- Extra air OUT AFTER normal exhale
- 2-3x TV
Lung Volumes:
Volumes
Residual Volume
RV
“Air that hangs out in the lungs”
- Air left AFTER expiration or ERV
- STAYS in lungs
- This is why IRV > ERV
Lung Volumes:
Capacities:
Inspiratory Capacity
Think adding 2 things (volumes) TOGETHER
TV + IRV
Lung Volumes:
Capacities:
Vital Capacity
“Air in lungs that is VITAL (not including RV)
- ERV + IRV + TV
Lung Volumes:
Capacities:
Total Lung Capacity
TLC
ALL Volumes!
RV + ERV + TV + IRV
Lung Volumes:
Capacities:
Functional Residual Capacity
ERV + RV
Lung Volumes:
Ex. COPD
INC RV, so INC FRV and INC TLC
bc ALL CONNECTED!!!
See chart and it makes sense!!!
Lung Volumes:
Tidal Volume
TV
500mL
500 mL
- air inspired during normal, relaxed breathing
Lung Volumes:
Inspiratory Reserve Volume
IRV
3,100 mL
- ADD. air that can be forcibly inhaled AFTER inspiration of normal TV== 5-6x TV
- inspired air OVER and ABOVE tidal volume
Lung Volumes:
Expiratory Reserve Volume
ERV
1200mL
- Add. air that can be forcibly EXHALED after the expiration of Norm TV
- Expired OVER tidal volume
Lung Volumes:
Residual Volume (RV)
1200 mL
1200 mL
- Volume of air still remaining in lungs after the ERV is exhaled
- ALWAYS PRESENT IN LUNGS
Lung Volumes:
TOTAL Lung Capacity
TLC
6000 mL
6000 mL
- MAX amt of air that can FILL the lungs
- TV + IRV + ERV + RV (EVERYTHING)
Lung Volumes:
Vital Capacity
VC
4800 mL
- TOTAL amt of air that can be expired AFTER fully INhaling
- TV + IRV + ERV–> approx 80% of TLC
NOTE: RV NOT included
Value varies according to age/body size
Lung Volumes:
Inspiratory Capacity
IC
3600 mL
- MAX amt of air tht can be INspired
- TV + IRV
- MAX INSPIRATION
Lung Volumes:
Functional Residual Capacity
FRC
2400 mL
- Amt of air remaining in lungs AFTER normal expiration
- RV + ERV (kinda like IC, but w/ EXHALE (ERV)
- Air is in lungs AFTER you’ve expired TV
NOTE: What is ALWAYS INCREASED in COPD?
INC RV, FRC, TLC
ALL CONNECTED!
Practice!
PT performs spirometry to assess lung functoin. PT tells pt he would like to assess amt of air in lungs AFTER norm exhale. Which volume?
Expiratory Reserve Volume (ERV)
Lung Volumes: Comparison
Normal vs Obstructive
Cannot get air OUT!
- Note INCd TLC, FRC, RV
Measurements:
Obstructive (CBABE, cannot get air OUT) vs Restrictive (cannot get air IN)
see table
Tidal Volume (VT)
Obst vs Restrict
O: N or INC
R: N or DEC
IC
Obst vs Restrict
O: N or DEC
R: N or DEC
ERV
Obst vs Restrict
O: N or DEC
R: N or DEC
Vital Cap.
O vs R
O: N or DEC
R: N
Forced Vital Cap
O vs R
O: N or DEC
R: DEC
RV
O vs R
O: N or INC
R: N or DEC
FRC
O vs R
O: N or INC
R: N or DEC
TLC
O vs R
O: N or INC
R: DEC
FEV1
O vs R
O: DEC
R: N
Practice!
52yo male w/ COPD and exp wheezing, tightness chest, coughing worse @ night. DOE, uses access mm’s to breath. MOST LIKELY INCd on PFT?
COPD
INC RV, TLC, FRC (ERV + VT)
COPD GOLD Classification
Stages I (Mild) to Stage IV (Very severe)
Stage I (Mild)
- FEV1= >80
- FEV1/FVC= <.7
- Chronic cough + sputum
Stage II (Mod)
- FEV1= 50-80
- FEV1/FVC= <.7
- Chronic cough + Sputum + Dyspnea
Stage III (Severe)
- FEV1= 30-50
- FEV1/FVC= <.7
- Chronic cough + sputum + INC dyspnea
Stage IV (Very severe)
- FEV1= <30
- FEV1/FVC= <.7
- Chronic cough + sputum + DOUBLE INC dyspnea
- Resp or R. HF, Wt loss
<.7 FEV1/FVC= COPD**remember lOw for Obstructive (Looower)
Practice!
78yo w/ acute exacerb. COPD. FEV1 40% (30-50, severe) and FEV1/FVC <.7 w/ SOB during amb. GOLD class?
SEVERE
Chronic cough + sputum + INC (1arrow) dyspnea
Practice!
58yo pt has COPD. During exam PT finds pt has weak wet cough. Which is approp to clear secretions?
Huffing–think fogging mirror, huffing feather off hand
- Gentler form of coughing to remove secretions. EASIER to move mucus out of lungs and stabilize airways, prevents collapse
NORMAL Breath Sounds
Remember: V-Bv-B-T (Very Big Boobs Tits)
Easiest way to remember? Organize like this!!
Intensities:
- Go from SOFTER to VERY loud
Pitch of Expiratory:
- Go from LOW to Rel. High
NORMAL Breath Sounds: V-Bv-B-T (Very Big Boobs Tits)
Vesicular (gentlest)
Duration: INSP longer than EXP
Intensity: SOFT
Pitch of Exp.: LOW
Location: Over MOST of lungs**
NORMAL Breath Sounds: V-Bv-B-T (Very Big Boobs Tits)
Bronchovesicular
Duration: INSP and EXP EQUAL
**Intensity: **Intermed.
**Pitch of Exp: **Intermed.
**Location: ** Bw 1st and 2nd interspace ANT. and bw scapulas
NORMAL Breath Sounds: V-Bv-B-T (Very Big Boobs Tits)
Bronchial
Duration: EXP sounds longer than INSP (just flips from vesicular)
Intensity: LOUD
Pitch of Exp: HIGH
Location: Over manubrium (lower vs Bv)
NORMAL Breath Sounds: V-Bv-B-T (Very Big Boobs Tits)
Tracheal (its in the name)
Duration: Both INSP and EXP EQUAL (same as Bv)
Intensity: VERY Loud
Pitch of Exp: Rel. High
Location (in the name): Over trachea in neck
Normal Breath Sounds:
Another way to remember…
- Vesicular: VESSELS on the ocean have to be SOFT to float and its for sailiing/riding beginners
- Bronchovesicular: When riding a BRONCO in a VESSEL on the ocean, it’s NOT for beginners but also not a hard lvl for sailing/riders, so it’s INTERMED.
- Bronchial: Riding a BRONCO is LOUD and for those only prepared since it can get crazy (HIGH)
- Tracheal: A TRAKE (DRAKE) concert gets VERY LOUD no matter who you are, so you know TRAKE (DRAKE) is VERY LOUD
PRACTICE!
Which sound is PT auscultating?
MOST of the lungs!
Vesicular
Abnormal Resp Sounds:
RWCP
Rhonchi- think snoring LOW
Wheeze- think WHistle
Crackles- think Snap, Crackle, Pop HIGH
Pleural rub- think sandpaper
Abnormal Resp Sounds:
Rhonchi
Think Ryan snores LOW
Snoring LOW
- continuous, LOW PITCHED rattling sounds often resemble Snoring.
- COPD, Bronchiectasis, PNA, Chronic bronchitis, CF
This is the only LOW one
Abnormal Resp Sounds:
Wheeze
Think Wheeze, Whistle HIGH
- high pitched heard in EXP (wheeze has lots of E’s so EXP.).
- Airway obstruct–> asthma, COPD, aspiration (if severe, heard during INSP also)
Abnormal Resp Sounds:
Crackles (bubble wrap pop)
Think snap, Crackle, POP HIGH
Blowing thru straw in water makes bubbles
- brief, DIScontinuous, Popping sounds HIGH-pitched
- prev Rales– heard during BOTH Insp/Exp
Abnormal Resp Sounds:
Pleural rub
Think sandpaper…literally
- Auscultate lower lat. chest–INSP and EXP
- Pleural inflammation!
PRactice!
76yo w/ s/s CHF. During auscultation, PT frinds S3 (CHF). Which high-pitched sound MOST likely assocd w/ CHF?
Crackles–snap, crackle, pop HIGH
- CHF= S3 + crackles (pop HIGH)
More on S3 vs S4
S3
- Ventricular gallop
- CHF, Crackles, Dyspnea
CHF–tachypnea, pulm edema, PND, orthopnea
S4
- Atrial gallop
- MI/HTN
Voice Sounds:
3 types and what they use
- Bronchophony: “99”
- Egophony: Long “E” sounds
- Whispered pectoriloquy: Whispering
Voice Sounds
Bronchophony
- Incd Vocal Resonance w/ greater clarity and loudness of spoken words
- Ex. 99
Aka if you hear “99” loud/clear==> Secretions
should be muffled= normal
Voice Sounds
Egophony
Form of Bronchophony in which the spoken long “E” sounds changes to long, nasally-sounding “A”
aka if you hear “A” loud/clear== Secretions
Muffled= normal
Voice Sounds
Whispered pectoriloquy
- Incd loudness of whispering
- recognition of whispered words (you’ll hear loudly) “1, 2, 3”
aka if you hear 1, 2, 3 LOUD==Secretions
Muffled= normal
PRactice!
PT assesses voice sounds. Stethoscope over thorax and asks to say “E” (Egophony!)
Egophony is “E” one!!
You will hear it as “A”
Abnormal Blood Gases
What SHOULD values be?
pH= 7.35-7.45
CO2= 35-45
HCO3-= 22-26
See table
Resp vs Met Acidosis vs Alkalosis
Resp== CO2 changes (lungs)
Met== HCO3- changes (kidneys)
- Resp acidosis–> pH DEC, CO2 INC, HCO3- Norm
- Resp alkalosis–> pH INC, CO2 DEC, HCO3- Norm
- Metabolic acidosis–> pH DEC, CO2 Norm, HCO3- DEC
- Metabolic alkalosis–> pH INC, CO2 Norm, HCO3- INC
Resp vs Met Acidosis vs Alkalosis
ROME
Resp Opposite
Metabolic Equal
ROME
Resp Opp
- pH high, CO2 down= alkalosis
- pH low, CO2 high= acidosis
Metabolic Equal
- pH high, HCO3 high= alkalosis
- pH low, HCO3 low= acidosis
PRactice!
What is going on here?
Metabolic ALKalosis
pH High, HCO3- High= Met alkalosis
Resp vs Met Acid/Alkalosis
STEPS!
- Look @ pH: IF Norm= 7.35-7.45, answer is compensated
- Look @ PaCO2: IF Norm= 35-45, answer is metabolic
- Look @ HCO3-: IF Norm= 22-26, answer is respiratory
- NONE of three are normal: answer is Partially compensated
Practice!
Chronic smoker w/ COPD undergoes ABG. (COPD usually HIGH CO2 bc cannot get air OUT!) MOST LIKELY to see on ABG?
INCd PaCO2, DECd PaO2, DECd pH