SkinDeep Diving

We were wrong about decompression sickness A massive new study conducted by DAN Europe revelead some unexpe...

May the Fourth (be with you)
4 May 26
Dive site: 3 Anchors
Depth: 22m
Dive time: 45 min plus 9 min ascent and safety stop.

Notes: Turtles
Lyretail hogfish (juvenile)
Yellow edged lyretail

29 April 26
Dive : Sir Riverlland to Ladies Spot
Depth: 16m
Dive time 60 min bottom plus 10 min ascent and Safety stop
Direction of swim : NNW

Notes:
Diana's Hogfish
Lyretail rockcod
Cardinals
Rockmover Wrasse (juvenile)
Convict surgeonfish

30 April 26
Dive: Water Lilly and Emily
Depth: 26m
Dive time: 30 minutes plus 8 minutes ascent and safety stop.

Notes:
Blue finned kingfish hunting
Electric ray
Longfin yellowtail
Tons of other stuff

We did 2 Fantastic dives today
Liesl, Luic and myself
Both reef dives. Concentrating on looking at the pretty little creatures.

Dive 1
Elmet Area
Depth: 17metres
Time: 62 minutes

Dive 2
Ladies's Spot
Depth 16 metres
Time: 70 minutes

25 April 26
Site: Helmet Area (Trou aux Biches)
Depth 19 metres
50 min

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Abnormal lung sounds (also called adventitious breath sounds) are extra or unusual sounds heard during auscultation with a stethoscope. They usually indicate underlying respiratory pathology.

Quick Clinical Summary
• Crackles → fluid in lungs
• Wheeze → narrowed airways
• Rhonchi → mucus in airways
• Stridor → upper airway obstruction (emergency)
• Pleural rub → inflamed pleura

⸻

🔊 Types of Abnormal Lung Sounds

1. Crackles (Rales)

Description:
• Discontinuous, popping sounds
• Heard mainly during inspiration

Types:
• Fine crackles: soft, high-pitched
• Coarse crackles: louder, lower-pitched

Causes:
• Pulmonary edema
• Pneumonia
• Fibrosis

👉 Mechanism: air passing through fluid or collapsed alveoli reopening

⸻

2. Wheeze

Description:
• Continuous, musical, high-pitched sound
• Usually heard on expiration

Causes:
• Asthma
• COPD
• Bronchospasm

👉 Mechanism: airflow through narrowed airways

⸻

3. Rhonchi

Description:
• Low-pitched, snoring/gurgling sound
• May clear after coughing

Causes:
• Bronchitis
• Airway secretions

👉 Mechanism: airflow through mucus-filled airways

⸻

4. Stridor

Description:
• Harsh, high-pitched sound
• Heard mainly during inspiration

Causes:
• Upper airway obstruction
• Foreign body
• Croup

⚠️ Clinical significance: medical emergency

⸻

5. Pleural Friction Rub

Description:
• Grating, creaking sound (like walking on snow)
• Heard during both inspiration and expiration

Causes:
• Pleurisy
• Pulmonary embolism

👉 Mechanism: inflamed pleural layers rubbing together

⸻

🧠 Quick Clinical Summary
• Crackles → fluid in lungs
• Wheeze → narrowed airways
• Rhonchi → mucus in airways
• Stridor → upper airway obstruction (emergency)
• Pleural rub → inflamed pleura

⸻

📚 These abnormal sounds are key findings during respiratory assessment and help clinicians identify conditions such as infection, airway obstruction, or fluid accumulation. 

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RESPIRATORY VENTILATION & GAS PRESSURES
UNDERSTANDING TIDAL VENTILATION.

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By Saleem N. Hamilah

We did 2 dives at Bass Lake at Henley on Klip today.
Dive 1 - 13 metres for 23 minutes (plus 3min safety stop @ 4 metres).
Surface interval of 45 minutes.
Dive 2 - 13 metres for 32 minutes (plus 3 minutes safety stop @ 4 metres).

The water is warm up to the first thermocline at 9m. The viz is variable. Up to 5m at 6m near the grids but reducing below 9m depth to 3m.

The viz at the helicopter was 3 metres.

The facilities are looking great with new signage and helpful staff. The food at the restaurant was good.

All in all - it was a great day there.