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Continuing Education — "The Action Level!®"

VOLUME 2(4), April 2005
Journal of Occupational and Environmental Hygiene

Answer the questions below and click "Submit".

Full Name:
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CASE STUDIES:

Prevalence of Musculoskeletal Disorders in Union Ironworkers
Martin S. Forde, Laura Punnett and David H. Wegman

1. The most prevalent, self reported doctor diagnosed musculoskeletal
    disorder among those who specialized in ornamental ironwork was:

a. Tendinitis
b. Carpal Tunnel Syndrome
c. Raynaud's Phenomena
d. Ruptured back intervertebral disc
2. This study suggests that the effect acute prior injuries have on self
    reported musculoskeletal disorder symptoms (MSDs) is not
    homogeneous across all anatomical regions and needs further
    research. True or False?
True
False
Field Performance of the RespiConTM for Size-Selective Sampling of Industrial Word Processing Dust
Roy Rando, Halet Poovey, Mokadam Dinkar, Joseph Brisolara and Henry Glindmeyer

3. According to the results of this study, the concentration of inhalable
    wood processing dust determined by the RespiCon should be
    adjusted by applying a correction factor of 1.5 to the device's stage
    3 (extrathoracic dust) data. True or False?

True
False
4. Which of the following factors did not appear to influence the
    performance of the RespiCon for size-selective sampling of
    industrial wood processing dust?
a. high concentrations of extrathoracic dust in this
          industry
b. free-field vs. bluff-body sampling modes
The Effectiveness of Hearing Protection Among Construction Workers
Richard Neitzel and Noah Seixas

5. About _____% of work shifts are actually brought below the TWA
   (reference 85 dBA) among construction workers choose to wear
   hearing protection a small fraction of their work day.

a. 15%
b. 20%
c. 25%
d. 40%
6. Hearing protection use reported by construction workers on an
    annual questionnaire agreed very well with hearing protection use
    reported by the same workers during individual work shifts.
    True or False?
True
False
Laboratory and Field Validation of the GC-NPD Method for the Measurement of Formaldehyde in the Workplace
Jee Yeon Jeong and Nam Won Paik

7. The principle of the newly developed method for the measurement of
    formaldehyde is to analyze a stable 2,4 DNPH formaldehyde
    derivative produced by a reaction between formaldehyde and
    2,4 DNPH. True or False?

True
False
8. Field tests indicated that the pooled overall uncertainty of the newly
    developed Sorbent sample tube and GC NPD method was found
    to be 21.2%, which is not satisfied with the NIOSH guideline.
    True or False?
True
False
Evaluation of the NIOSH MWF Total Particulate Matter: Thoracic Particulate Matter Conversion Factor in a Machining Environment
Beth Donovan Reh, Joshua M. Harney, Robert E. McCleery, Charles A. Mueller

9. What was the positive predictive value of using the total particulate
    matter result as a test for thoracic overexposure in this situation?

a. 60%
b. 40%
c. 55%
d. 35%
10. The NIOSH REL for MWFs is 0.5 mg/m3 total particulate matter.
      True or False?
True
False


Deadline for answers is April 30, 2005.

Answers will be available online at
http://www.acgih.org/products/joeh/alanswers.htm
on May 9, 2005.

 
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