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Philip D Parks, MD, MPH, MOccH, FACOEM  
Male
Boston, MA

Specialties: Occupational Safety, Occupational Health

Cambridge Health Alliance, Harvard Medical School
Department of Internal Medicine, Division of Occupational Medicine
My Posts
Hello, There are a number of factors that affect risk for blood borne pathogen exposure (size of the needle, depth of penetration, whether or not the injured person immediately washes with soap and water, etc. according to CDC). The risk % for HIV that is usually quoted for blood borne pathogen exposures is 0.03%. ~ Dr. Parks This answer provided...
Hello, It is standard practice to interpret initial test results for drug testing as "non-negative" if there is a non-negative result. The sample is then sent for confirmatory testing to determine if the specimen is positive or negative for a substance of interest. ~ Dr. Parks This answer provided to you is not intended as and does not sub...
Hello, There are several types of rabies vaccines and there is no published evidence that the vaccine or the response to the vaccine causes negative effects on the human brain or nervous system. ~ Dr. Parks This answer provided to you is not intended as and does not substitute for medical advice. The information presented in this Medhelp.org posting...
Hello, Any time that you have symptoms that you believe are related to a vaccine, you should communicate with your healthcare provider. These symptoms may (or may not) be related to the vaccine. ~ Dr. Parks This answer provided to you is not intended as and does not substitute for medical advice. The information presented in this Medhelp.org postin...
Hello, There is no evidence-based answer to your question regarding the 11 hour time difference. I do not believe that the eleven hour difference will significantly impact the effectiveness of the booster. ~ Dr. Parks This answer provided to you is not intended as and does not substitute for medical advice. The information presented in this Medh...
Hello, Congratulations on your pregnancy. In general, the procedures that you describe (working in a hood + wearing gloves, safety glasses, lab coat) are designed to minimize or eliminate exposures/potential exposures. First, I recommend that you look at each MSDS for the items that you are working with and determine (or ask your Health & Safety ...
Hello, Do you know anything about the source patient's HIV, Hep C, Hep B status? In general, the type of needlestick (small puncture through gloves with a solid bore needle) is relatively low risk. The CDC guidelines and best practices from other organizations recommend immediately washing a needlestick site with soap and water. Theoretically, imme...
Hello, Yes. After washing and sterilizing the bottles, there should be no residual materials. ~ Dr. Parks This answer provided to you is not intended as and does not substitute for medical advice. The information presented in this Medhelp.org posting is for patients’ education only. As always, I encourage you to see your personal physician for furth...
Hello, Did you have an injury or was there a specific event that you recall when the pain began? If so, what happened? Have you seen a healthcare provider to evaluate your back pain? What have they told you about a diagnosis? The determination of whether or not you are able to work is one for which your healthcare provider can provide recommend...
Hello again, Based on the information provided in your original posting, the exposure that you described is relatively low risk. The most important factors that determine risk are the HIV status of the source patient, the size of the needle, whether you were wearing gloves or not, the depth of puncture, whether or not you immediately cleaned the exposure s...