A standard employee health screening typically includes a blood draw, blood pressure check, and body measurements like height, weight, and BMI. Most screenings take 15 to 30 minutes and are designed to flag early signs of chronic conditions like heart disease and diabetes. Beyond that baseline, the specific tests you’ll encounter depend on whether your employer is running a general wellness screening or an occupational screening tied to your job duties.
Biometric Measurements
The physical portion of most wellness screenings is straightforward. A technician will measure your height, weight, and waist circumference, then calculate your BMI. You’ll also get a blood pressure reading. These numbers together paint a quick picture of cardiovascular and metabolic risk. Waist circumference, for example, is a better predictor of certain health risks than weight alone because it reflects how much fat is stored around your organs.
Blood Work
The blood test is the most informative part of the screening. It’s usually done with either a fingerstick (a quick prick that produces a few drops) or a standard blood draw from your arm. The panel typically covers:
- Lipid panel: Total cholesterol, LDL (“bad” cholesterol), HDL (“good” cholesterol), triglycerides, and the ratio of total cholesterol to HDL. These numbers are the primary markers for heart disease risk.
- Blood glucose: A fasting glucose test screens for diabetes or prediabetes by measuring the sugar in your blood at that moment.
- A1C: Some screenings include this test, which measures your average blood sugar over the past two to three months. It’s more reliable than a single glucose reading because it isn’t affected by what you ate the day before.
Together, these results target the top cost drivers in employer health plans: cardiovascular disease and diabetes. You’ll usually receive your results on a printed sheet with reference ranges so you can see where your numbers fall.
How to Prepare
If your screening includes blood work, you’ll likely be asked to fast for 8 to 12 hours beforehand. Fasting means no food or drinks other than plain water. Coffee, juice, soda, and even flavored sparkling water can affect your glucose and lipid results. You should also avoid chewing gum, smoking, and exercise during the fasting window.
Drinking plenty of plain water is actually encouraged. Staying hydrated keeps your veins fuller, which makes the blood draw easier and faster for the technician.
Occupational Screenings for Specific Jobs
If your job involves physical hazards, your screening will go well beyond the basics. OSHA requires specific medical surveillance tests based on what you’re exposed to at work, and these are legally mandated rather than voluntary.
Workers in high-noise environments (85 decibels or above, roughly the level of heavy traffic) need a baseline hearing test within six months of first exposure, followed by annual hearing tests. If your job requires a respirator, you’ll complete a medical evaluation questionnaire and possibly a follow-up exam to confirm you can safely wear one. That evaluation focuses on your respiratory and cardiovascular health and may include a lung function test or chest X-ray at a clinician’s discretion.
Employees exposed to specific chemicals face more targeted testing. Workers around asbestos receive lung function tests and exams focused on respiratory, cardiovascular, and gastrointestinal health. Lead-exposed workers get evaluations covering everything from kidney function to neurological health. Cadmium, formaldehyde, and methylene chloride each have their own required exam profiles. In all of these cases, the screenings happen before placement in the role and then periodically throughout employment.
Mental Health Assessments
Some employers are adding mental health components to their screenings, though this is far less standardized than the physical side. When included, these are typically short questionnaires that assess stress levels, psychological distress, or symptoms of depression. Common tools include brief self-report scales that ask about your mood, energy, sleep, and ability to concentrate over the past few weeks. These aren’t diagnostic on their own. They’re designed to identify people who might benefit from follow-up support or counseling resources through an employee assistance program.
Who Sees Your Results
Privacy protections depend on how the screening is structured. When a wellness program is offered through your employer’s group health plan, your individual results are protected health information under HIPAA. Your employer cannot use that data for hiring, firing, or other employment decisions. The plan must maintain a clear separation between employees who handle health plan administration and everyone else, with security measures like firewalls to enforce that boundary.
If your employer runs the screening directly and it’s not part of a group health plan, HIPAA does not apply to that data. In practice, most large employers use third-party vendors to collect and process screening results, which means the company receives only aggregate data (like the percentage of employees with high cholesterol) rather than individual reports. Your personal results go to you. If something abnormal shows up, the screening provider typically recommends you follow up with your own doctor.
For occupational screenings required by OSHA, the examining clinician generally provides the employer with a fitness-for-duty determination (essentially a yes or no on whether you can safely perform the job) without disclosing specific medical details.