Organophosphorus
Contents
- 1 Organophosphorus inhibit ————— to cause clinical features of acute poisoning
- 2 All are features due to overstimulation of muscarinic acetylcholine receptors in the parasympathetic system Except
- 3 All of the following are features due to overstimulation of nicotinic acetylcholine receptors in the sympathetic system EXCEPT
- 4 All of the following are features due to overstimulation of nicotinic and muscarinic acetylcholine receptors in the CNS EXCEPT
- 5 All of the following are features due to overstimulation of nicotinic acetylcholine receptors at the neuromuscular junction EXCEPT
- 6 Intermediate syndrome is seen in
- 7 Which measurement more accurately reflects nervous system Organophosphate acetylcholinesterase inhibition
- 8 If excess atropine is given to a patient then we observe all of the following EXCEPT
- 9 Recurring cholinergic crises in organophosphorus poisoning is due to
- 10 Clinical features of organophosphorus poisoning
Organophosphorus inhibit ————— to cause clinical features of acute poisoning
A. Butyrylcholinesterase
B. Acetylcholinesterase
C. Muscarinic receptors
D. Nicotinic receptors
All are features due to overstimulation of muscarinic acetylcholine receptors in the parasympathetic system Except
A. Urination
B. Bronchorrhoea
C. Mydriasis
D. Bronchospasm
All of the following are features due to overstimulation of nicotinic acetylcholine receptors in the sympathetic system EXCEPT
A. Tachycardia
B. Mydriasis
C. Hypotension
D. Sweating
All of the following are features due to overstimulation of nicotinic and muscarinic acetylcholine receptors in the CNS EXCEPT
A. Confusion
B. Agitation
C. Fasciculations
D. Respiratory failure
All of the following are features due to overstimulation of nicotinic acetylcholine receptors at the neuromuscular junction EXCEPT
A. Muscle weakness
B. Paralysis
C. Fasciculations
D. Coma
Intermediate syndrome is seen in
A. Atropin poisoning
B. Oxime Treatment
C. Head injury
D. Organophosphorus poisoning
Which measurement more accurately reflects nervous system Organophosphate acetylcholinesterase inhibition
A. RBC Butyrylcholinesterase
B. RBC Acetylcholinesterase
C. Pseudocholinesterase
D. Anticholinesterase
If excess atropine is given to a patient then we observe all of the following EXCEPT
A. agitation
B. pyrexia
C. absent bowel sounds
D. urinary incontinence
Recurring cholinergic crises in organophosphorus poisoning is due to
A. Inadequate atropine
B. Pralidoxime is not added in treatment plan
C. Reintake of organophosphorus
D. Release of fat soluble organophosphorus from fat stores
In shorts
Clinical features of organophosphorus poisoning
| Overstimulation of acetylcholine receptors | Features | |
| 1 | Muscarinic acetylcholine receptors in the parasympathetic system | Bronchospasm Bronchorrhoea Miosis Lachrymation Urination Diarrhoea Hypotension Bradycardia Vomiting Salivation |
| 2 | Nicotinic acetylcholine receptors in the sympathetic system | Tachycardia Mydriasis Hypertension Sweating |
| 3 | Nicotinic and muscarinic acetylcholine receptors in the CNS | Confusion Agitation Coma Respiratory failure |
| 4 | Nicotinic acetylcholine receptors at the neuromuscular junction | Muscle weakness Paralysis Fasciculations |
