Sanitary written

What is true regarding infectious hepatitis?

The agent occurs in both the blood & feces of patients.

Which disease would NOT be transmitted through un-pasteurized milk?

Dengue.

What is the MOST likely cause of trachoma traced to a public swimming pool?

The use of community towels.

Which area is LEAST associated with infant mortality rate?

Auto Accidents.

How soon must bacteriological drinking water samples be analyzed after collection?

Within 30 hours.

What is the GREATEST advantage of the membrane filter technique over the multiple tube test?

Results are obtained in a shorter time.

What is the primary purpose of rapid filtration & coagulation in water treatment?

To remove turbidity.

How much calcium hypochlorite (70% available chlorine) is needed to make 25 gallons of a 1% chlorine solution?

3 pounds.

What is NOT recommended for protecting a water well against contamination?

The well should be protected by a pump house.

What source is MOST likely safe for human consumption?

Drilled well.

What is the LEAST important public health reason for treating sewage?

Unsightly conditions.

How is digestion of organic matter accomplished in a septic tank?

By anaerobic bacteria.

What is the MOST common problem with grease traps in restaurants?

Lack of maintenance.

What is the LEAST suspected cause of a tile field system failure?

Deterioration of the tile.

What principle do oxidation ponds operate on?

Algae furnishing oxygen for aerobic action.

Where should water drawn from a swimming pool for filtration come from?

Both the surface & the deepest part of the pool.

What is the recommended free chlorine residual for a water supply distribution system?

4 ppm.

Why should cross-connections in plumbing be eliminated?

They have been responsible for numerous cases of diseases such as typhoid fever & dysentery.

How do the terms 'vectors' and 'vehicles' differ?

Vehicles are usually inanimate objects.

What is the MOST effective fly control procedure?

Environmental Sanitation.

How much 4% bleach is needed to achieve a 100ppm chlorine concentration in a 12 gallon sink?

3.84 ounces.

What is the MOST significant economic factor of rodents?

They spoil or damage food & property.

What is the classification for pasteurization in terms of disinfection?

Disinfection.

Which of the following is NOT a disinfectant?

Cold.

What is the SUREST method for controlling trichinosis?

Thorough cooking of all pork products.

What is the safe temperature range for holding potentially hazardous foods?

40 F or below or 140 F or above.

Which basic equipment is NOT needed by a food sanitarian?

Pyrometer & thermocouples.

Which statement about the nutritional value of milk is NOT true?

It contains adequate amounts of all vitamins.

What effect do humans have on air quality in an unventilated room?

Temperature increases.

What is the MOST effective means of disinfecting air in hospitals?

Combination of measures.

What is the sanitarians concern at a school?

Sanitation of the cafeteria, food handling, water supply, etc.

What affects the disinfecting ability of chlorine the MOST?

Temperature.

What is the BEST floor covering in school kitchens and lunchrooms from a public health standpoint?

Linoleum or plastic tile.

Which area of a hospital requires the GREATEST sanitation practices?

Isolation room.

Who is MOST affected by atmospheric pollution?

The very young and the elderly.

Who inspects water supplies used by interstate carriers?

Office of Health Services.

What is the LEAST concern of a sanitarian inspecting a motel?

Landscaping of ground.

What is NOT normally required under emergency situations?

Safe drinking water under pressure.

What percentage of radioactivity would a radioisotope with a half-life of 14 days be reduced to in 8 weeks?

About 6%.

What is a common function of the sanitarian section of a local health department?

Approval of small water supplies.

What is described by the 'right of entry' by health officials?

It is clear except in few situations.

Which food establishments require the HIGHEST foot-candle illumination ratings?

Food prep rooms.

What is an approved insecticide for use in a food establishment?

Pyrethrin.

What ppm of chlorine should be used to disinfect a well before placing into service?

50 ppm.

What fundamental information is needed for environmental planning of a rural subdivision?

The size of the lot.

What is the major contributor to food-borne illness?

Abuse of the time/temperature relationship.

Where can information on disease transmission, control, & treatment be obtained?

Center for Disease Control.

What does the presence of coliforms in a water sample indicate?

There is some source of environmental contamination.

Why are fomites important in certain diseases?

They may indirectly transmit disease organisms.

What does the Sanitary Code of Louisiana represent?

Regulations developed & enforced by the Office of Health Services & Environmental Quality.

What organism is used as an index of microbiological contamination of food & water?

Coliform.

What is a growing concern regarding oysters?

Increase in pollution of coastal waters.

What temperature should frozen foods be stored at to maintain quality?

0 F.

What is the only absolute method to prevent back-siphonage?

The use of an air gap.

What is the infection reservoir for Arthropod borne viral encephalitis?

Mosquitoes.

When are tastes & odors in water more noticeable?

When the water is warm.

What is the confinement period for a dog that has bitten someone?

10 days.

Which group is likely to have the highest incidence of hookworm infestation?

Sharecroppers in Alabama.

What is the incidence of skier injury if there are 312 injuries over 50,000 skier days?

6.24 per thousand.

In what capacity do sanitarians take part in court proceedings?

As Expert witness.

How should flush valves be protected against back-siphonage?

By installing a vacuum breaker.

Which statement about the effectiveness of disinfectants is INCORRECT?

Absolute alcohol is a powerful germicide & antiseptic.

What is the MOST efficient method of sterilizing water sample bottles?

Steam under pressure.

What is the median incubation period for staphylococcus intoxication?

Between 2 & 4 hours.

What occurs when cooked foods not immediately served should be cooled?

They should be cooled quickly & stored at 40 F until served.

What does 'pH' stand for?

Percent of hydrogen molecules in a solution.

How does pH affect chlorine activity?

A higher pH requires a higher chlorine residual.

What are the two types of water sources in LA?

Ground & surface.

What is the MAJOR component of public health expenditures?

Personnel.

What best fulfills the top two needs in Maslow's hierarchy?

Recognition & achievement.

What are the two lab tests used to analyze drinking water?

Multiple tube test and membrane filter test.

What problems are associated with high iron concentrations in drinking water?

Color, odor (rotten egg), 'red water', and staining of fixtures.

Who produces dissolved oxygen in oxidation ponds?

Algae.

Which bacteria are associated with food poisoning and name at least one?

Bacilli, Botulism, Vibrio Cholera, Streptococci, Scarlet Fever, Staphylococci, Spirochete, Syphilis, Diplococci, Gonorrhea, Rickettsia, Q Fever, Fungi, Histoplasmosis.

Is all milk required to be homogenized before final sale?

False.

Are state health activities largely advisory & cooperative rather than regulative?

True.

Does water atomize at pressures above 25 psi for dishwashing?

True.

Is pine oil both an efficient germicide and a deodorant?

False.

Is myiasis more frequent in animals than humans?

True.

Is fumigation more effective against rats than microorganisms?

True.

Should plans for improvements be based on temporary abatements?

False.

Is bottled water free from the risk of containing pathogenic bacteria?

False.

Is there little pain involved when humans have trichinosis?

False.

Is a standard of 100 colonies per utensil acceptable for diab awab results?

True.

Should drinking water contain no more than 5 units of turbidity and 15 units of color?

True.

Are hospital outbreaks of staphylococcus infections usually caused by unclean instruments?

False.

Are bats considered a public health pest?

False.

Are there rules pertaining to mass gatherings?

False.

Can odors be controlled in pit privies by adding chlorine?

False.

Does mortality deal with death and morbidity deal with illness?

True.

What temperature should storage morgue vaults be maintained at or lower?

45 F.

What attire is required for sanitarians in hospital operating rooms?

Scrub Suits.

What monitoring device must hospital radiation equipment operators wear?

Film badges OR Dosimeters.

What certificates of registration must be posted in the hospital radiology department?

DNR's Nuclear Control Board.

How often should spore testing be conducted on gas and steam sterilizers in hospitals?

Each load for gas and weekly for steam.

What must infectious waste undergo before burial in a landfill?

Autoclaved OR incinerated.

Who regulates the disposal of hazardous waste?

DEQ.

What is the proper Celsius range for a hospital blood refrigerator?

2 C - 3 C.