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Clinical Occupational Medicine > Physical Hazards > Flashcards

Flashcards in Physical Hazards Deck (22):
1

What is NIOSH maximum weight limit?

never more than 51 lbs.

2

Lifting Index Formula?

lifting index (LI) = load weight/recommended weight limit

3

NIHL is most apparent at ___ Hz?

4000

4

What is action level for noise per OSHA?

85 dBA

5

What is PEL of noise per OSHA?

90 dBA

6

What entity inspects nuclear sites?

NRC

7

What is the first sens to be affected by hypoxia?

vision

8

Per NRC, what is occupational exposure limit for radiation?

5 rem (.05 Sv)

9

Alpha particle shielding material?

paper, skin, light fabric

10

Beta particle shielding material?

heavy clothing protects but may penetrate germinal layers of skin

11

Gamma rays and x-rays shielding material?

lead shielding

12

1 Sievert (Sv) is = ___rem

100 rem

13

Symptoms of heat syncope:

dizziness, syncope, vasodilation, quick recovery expected

14

Symptoms of heat cramps:

cramping, hyponatremia, normal body temp, usually later in the day or post-work, absence of constitutional symptoms

15

Symptoms of heat exhaustion:

salt and water depletion, NV, weakness, mental status change, "clammy and pale"

16

Symptoms of heat stroke:

failure to dissipate body heat, reduced LOC or psychosis, circulatory collapse, rhabdo, ARF, "hot and dry"

17

What does WGBT measure?

Air temp, humidity, radiant heat,air flow

18

Hyperbaric environment: how many atmospheres of pressure per 33 feet of depth?

1 atm per 33 feet of depth

19

Hypobaric environment: how many atmospheres of pressure at 18,000 ASL?

0.5 atm

20

What are illnesses associated with hypobaric environments?

hypoxia, AMS, HAPE, HACE

21

Prevention and treatment of AMS?

slow ascent, acetazolamide; treated with descent, dexamethasone, O2

22

Altitude hypoxia: what sense is first affected?

vision-diminished night vision