NURSING ANM AND GNM

NURSING EXAM QUESTIONS

TOXICOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cyanide affects cattle through which of the following?
A
apple tree leave
B
hay
C
water
D
vegetables
Explanation: 

Detailed explanation-1: -Animals ingesting wilted cherry leaves experience the release of cyanide (HCN) into the bloodstream; this toxin is very potent.

Detailed explanation-2: -Cyanogenic plants that pose a risk of cyanide poisoning to livestock include forage sorghum, Johnson grass, sudangrass, chokecherry, and arrowgrass.

Detailed explanation-3: -Cyanide inhibits oxygen utilization by the cells in the animal’s body. In essence, the animal suffocates. Ruminant animals (cattle and sheep) are more susceptible to cyanide poisoning than nonruminant animals because the ruminal microorganisms have enzymes that will release cyanide in the animal’s digestive tract.

Detailed explanation-4: -Cyanide poisoning results from exposure to a source of cyanide ions (CN-). There are four main syndromes in animals: Classical acute cyanide poisoning is when CN-binds to, and inhibits, the ferric (Fe 3+) heme moeity form of mitochondrial cytochrome c oxidase (synonyms: aa 3, complex IV, cytochrome A3, EC 1.9. 3.1).

There is 1 question to complete.