LD50 Study guides, Class notes & Summaries

Iowa Commercial Pesticide Applicator Category 1A Latest Update Graded A What is the greatest hazard when applying most herbicides? Injury to nontarget plants Name some herbicides which are very effective against germinating weeds but less effective on established weeds. Frontier, Lasso, and Dual What soil conditions reduce the activity of many herbicides and require increased rates for adequate weed control? Higher levels of soil organic matter or clay Two herbicides which are more active on ...

CardioPulmonary Rehab According to the ATS, what are the two specific objectives of pulmonary rehabilitation? - Answer: 1 - To control and alleviate symptoms and complications of respiratory impairment 2 - To teach patients how to achieve optimal capacity for activities of daily living Egan VII, p - 1226 Gas Therapy What is the weight of CO2 in a full D cylinder at 21 degrees Celsius and 14.7 psig? - Answer: 4 lbs McPherson, p - 26 Airwaycare Of what material are Jackson tracheostomy tu...

Acute Toxicity refers to toxicity from - a one time exposure to a pesticide Chronic Toxicity refers to toxicity from - many small exposures to a pesticide The Term LD50 refers to the level of toxicity where - 50% mortality is observed Pyrethroid pesticides exert their toxicity in the form of - a nerve poison with symptoms similar to chlorinated hydrocarbons Chronic Toxicity tests are conducted to determine - Teratogenic and Carcinogenic effects A carcinogen is a material that causes - canc...

VTNE: Pharmacology Questions and Answers 100% Pass Who regulates controlled drugs? The FDA (Food and Drug Administration) and the DEA (Drug Enforcement Administration) C-I Schedule I drugs have the most abuse potential and no current medically acceptable use Marajuana, heroin C-II Schedule II drugs have a high abuse potential and are prone to cause severe dependence Written prescription only (except in emergencies with written script within 72 hrs) No refills Morphine, oxycodone, amphetamines,...

A key to minimizing the hazard of pesticide use to the applicator is to avoid exposure (T/F) correct answer: True The use of temperature or humidity manipulation is a ________ control method for insects correct answer: Physical Drift problems can be reduced by: a. using lower pressure, smaller nozzle orifices b. applying in very calm, stable air conditions c. spraying upwind of a sensitive area d. placing bloom as close to target as possible correct answer: d. placing a boom as clos...

When a pest reaches the , pest management procedures need to be applied to prevent it from reaching economically damaging populations.- : Economic Threshold 2. Protectant fungicides must be applied BEFORE infection occurs. (True or False): True 3. The key to minimizing the hazards of pesticide use to the applicator is to Avoid Exposure ANS True 4. The use of plants resistant to pests is a control method. a. mechanical b. biological c. genetic ANS. genetic Private Pesticide Applicator...

Trugreen General Pest Management Test 7A Exam Questions And Answers 2023 ABSORPTION - Correct Answer-The movement of a chemical into plants, animals (including humans), and/or microorganisms. ACARICIDE - Correct Answer-A pesticide used to control mites and ticks. Amiticide is an acaricide. ACTIVE INGREDIENT - Correct Answer-The chemical or chemicals in a pesticide responsible for killing, poisoning, or repelling the pest. Listed separately in the ingredient statement. ACUTE TOXICIT...

Pesticide Applicators License Practice Test Questions With Complete Solution Which of the following is a herbicide used in forestry settings? - CORRECT ANSWER Fosamine What is the term for the minimum number of days allowed between a pesticide application and harvest? - CORRECT ANSWER preharvest Interval Where on a pesticide label would an applicator find the required PPE for early entry into a treated area? - CORRECT ANSWER Agricultural Use Requirements ...

3 things that determine vulnerability to groundwater contamination. - ANSWER-Geologic conditions, depth to groundwater, and weather conditions. Zones of saturation - ANSWER-Areas where water collects underground(Where groundwater is found) Every 5 years or 12 credits in 5 year period. - ANSWER-How often must a pesticide applicator reexam for his license? Oil degredation-resistance and filter efficiency - ANSWER-What respirators are classified by 75 ft - ANSWER-Legal distance from pri...

therapeutic index - ️️A quantitative measurement of the relative safety of a drug Comparison of the amount of a therapeutic agent that causes the therapeutic effect to the amount that causes toxicity TI ratio in other words - ️️Efficacy (pharmacology): safety (toxicity) without considering the nature of pharmacological or toxicological endpoints Is a high or low therapeutic index better? - ️️A high Therapeutic Index (TI) is preferable for a drug to have favorable safety and eff...