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MALAYSIAN DOSH MULTI-DISCIPLINARY MEDICAL SURVEILLANCE
Worker Session: Anonymous
•
2026-11-08
STATUTORY OVERALL CLEARANCE (FFD)
GATE 4: FIT
Presets:
Spirometry Parameters
Actual and predicted lung volumes in Litres (L)
FEV1
Forced Expiratory Volume in 1 second
L
L
FVC
Forced Vital Capacity
L
L
Calculated Ratios & Gates
Live DOSH surveillance threshold analysis
FEV1 / FVC Ratio
—
Gate 1: ≥ 70.0%
FEV1 % Pred
—
Severity Gate
FVC % Pred
—
Gate 1/2: ≥ 80.0%
Volume-Time Spirogram
Predicted vs actual curve · FEV1 at t = 1.0 s · schematic exponential fit, not a recorded trace
AWAITING DATA
MILD
Enter worker spirometric parameters (FEV1 and FVC actual & predicted) to calculate fitness to work.
Malaysian DOSH Surveillance Decision Tree Audit Rules ▾
Gate 1
FEV1/FVC ≥ 70.0%: If FVC ≥ 80% → NORMAL (FIT); If FVC < 80% → RESTRICTIVE (RESTRICTED - Require CXR)
Gate 2
FEV1/FVC < 70.0%: If FVC ≥ 80% → OBSTRUCTIVE; If FVC < 80% → MIXED
Gate 3
Severity (Obstructive/Mixed): FEV1 ≥ 80% (Mild - Fit) | 50%–79.9% (Moderate - Restricted) | 30%–49.9% (Severe - Unfit) | < 30% (Very Severe - Unfit)
OCCUPATIONAL HEALTH MEDICAL SURVEILLANCE
SPIROMETRY FITNESS TO WORK REPORT
Date: -
Worker ID: Anonymous
Standard: DOSH Guidelines
| Parameter | Actual (L) | Predicted (L) | % Predicted / Ratio | DOSH Reference |
|---|---|---|---|---|
| FEV1 (Forced Expiratory Vol, 1s) | - | - | - | Severity benchmark |
| FVC (Forced Vital Capacity) | - | - | - | Normal: ≥ 80.0% |
| FEV1 / FVC Ratio | - | - | Normal: ≥ 70.0% | |
PATTERN: -
CLINICAL STATUS: -
-
OSH-Calc Fit4Duty MY • Verified Deterministic Medical Surveillance Engine
Occupational Health Doctor (OHD) Sign-off: _____________________
Presets:
O
DOSH Noise
Right Ear (AD)
Red Channel • Standard Ear
Baseline Thresholds (dB)
2k · 3k · 4k
Current Thresholds (dB)
1k · 2k · 3k · 4k
Baseline Avg (2-4k)
—
Current Avg (2-4k)
—
STS Shift (≥10 dB)
—
Impairment (>25 dB)
—
AWAITING DATA
X
DOSH Noise
Left Ear (AS)
Blue Channel • Standard Ear
Baseline Thresholds (dB)
2k · 3k · 4k
Current Thresholds (dB)
1k · 2k · 3k · 4k
Baseline Avg (2-4k)
—
Current Avg (2-4k)
—
STS Shift (≥10 dB)
—
Impairment (>25 dB)
—
AWAITING DATA
Pure Tone Audiogram
Right ear ○ solid red · Left ear ✕ dashed blue · baseline in grey · DOSH STS 2-4 kHz highlighted
AWAITING DATA
WORST EAR: NONE
Enter baseline and current hearing thresholds to compute Standard Threshold Shift (STS) and fitness status.
Malaysian DOSH Occupational Noise Exposure Rules STS Rules ▾
Gate 1
Standard Threshold Shift (STS): Shift = Current Avg (2k, 3k, 4k) − Baseline Avg (2k, 3k, 4k). If Shift < 10 dB → NORMAL (FIT); If Shift ≥ 10 dB → STS Detected.
Gate 2
Hearing Impairment Check: Average of Current (1k, 2k, 3k). If ≤ 25 dB → STS WITHOUT IMPAIRMENT (RESTRICTED - Repeat 3 mos); If > 25 dB → STS WITH IMPAIRMENT (UNFIT - Refer ENT / JKKP 7 Mandatory Notification).
Bilateral
Worst Ear Principle: Both ears evaluated independently. The ear with worse clinical status dictates the overall worker fitness determination.
OCCUPATIONAL HEALTH MEDICAL SURVEILLANCE
AUDIOMETRY FITNESS TO WORK (STS) REPORT
Date: -
Worker ID: Anonymous
Standard: DOSH Noise Regulations
| Channel / Frequency | Baseline (dB) | Current (dB) | Shift (2-4k) | Impairment (1-3k) |
|---|---|---|---|---|
| Right Ear (AD) | - | - | - | - |
| Left Ear (AS) | - | - | - | - |
PATTERN: -
FITNESS DETERMINATION: -
-
OSH-Calc Fit4Duty MY • Verified Deterministic Medical Surveillance Engine
Occupational Health Doctor (OHD) Sign-off: _____________________
Presets:
Methylhippuric Acids (MHA)
Xylene / Toluene metabolite • Ceiling 1.50 g/g creatinine
g/g
Action Level: 0.75 g/g
0.0% of Limit
S-Phenylmercapturic (S-PMA)
Benzene metabolite • Carcinogen surveillance • Ceiling 500 µg/g
µg/g
Action Level: 250 µg/g
0.0% of Limit
Blood Lead Level (BLL)
Inorganic lead • Medical Removal Protection (MRP) ceiling 50.0 µg/dL
µg/dL
Action Level: 30.0 µg/dL
0.0% of Limit
Additive Exposure Index (EM)
0.00
AWAITING DATA
FULL FIT
Enter worker biological monitoring biomarkers to evaluate statutory chemical fitness under USECHH Schedule II.
Surveillance Recall Interval:
12 MONTHS (STANDARD)
General Physical Examination
Blood pressure & statutory occupational safety screening
BP
Blood Pressure (Uncontrolled HTN Gate: > 160/100 mmHg)
mmHg
mmHg
BP Status: Optimal (< 140/90 mmHg)
Color Blindness (Ishihara)
Color vision deficiency / failure in standard Ishihara plates
Active Epilepsy
History of unprovoked seizures, active anti-epileptic therapy
Severe Visual Loss
Uncorrectable visual acuity deficit < 6/60 or visual field defect
HR Clearance Metadata
Job role & statutory examining doctor certification details
FIT
GATE 4
Spirometry
AWAITING
Audiometry (STS)
AWAITING
Physical Exam
CLEAR
Operational Restrictions & Recommendations:
Fit for designated operational duties without clinical restrictions.
Statutory Occupational Health Medical Surveillance
DOSH MEDICAL SURVEILLANCE - FITNESS TO WORK CERTIFICATE
CONFIDENTIAL — FOR HUMAN RESOURCES (HR) DEPARTMENT ONLY
Ref: OSH-MY-202611-01
Date of Exam: -
| Worker ID: | - | Designation / Role: | - |
| Surveillance Standard: | DOSH Malaysia (USECHH Regs 2000 & Noise Exposure Regs 2019) | ||
1. Clinical Surveillance Module Outcomes
| Examination Module | Key Parameters / Thresholds | Module Determination |
|---|---|---|
| Occupational Spirometry | - | - |
| Pure Tone Audiometry (STS) | - | - |
| Physical Exam & Screening | - | - |
2. Statutory Overall Fitness Determination
Final Status:
FIT
GATE 4: NORMAL
3. Operational Restrictions & Workplace Accommodations
- Fit for designated operational duties without clinical restrictions.
EXAMINING DOCTOR CERTIFICATION:
I hereby certify that the worker identified above has undergone statutory medical surveillance assessment. The determination recorded above strictly reflects medical suitability for the designated job role under Malaysian DOSH guidelines.
Examining Doctor: __________________
Doctor Name: Dr. Occupational Health Doctor | MMC/OHD Reg: MMC 54321 / OHD HQ/21/045
OHD Signature & Clinic Stamp
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Settings
Device preferences & clinical standardsClinical Standards
Malaysian DOSH Medical Surveillance Guidelines
Occupational Safety and Health Act (OSHA 1994), USECHH Regulations 2000 & Occupational Noise Exposure Regulations 2019.
Occupational Safety and Health Act (OSHA 1994), USECHH Regulations 2000 & Occupational Noise Exposure Regulations 2019.
- Spirometry: Ratio Gate 70.0%, FVC Gate 80.0%, FEV1 Severity Bands (80%, 50%, 30%).
- Audiometry (STS): Gate 1 Shift ≥ 10.0 dB (2k, 3k, 4k avg), Gate 2 Hearing Impairment > 25.0 dB (1k, 2k, 3k avg). Worst ear principle.
- Zero-PII Architecture: No patient identifiable information stored or transmitted.
- 100% Offline Progressive Web App with deterministic local calculations.
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