Ganglionic stimulants and blockers Flashcards

1
Q

ganglionic agents are primarily made from what stimulant

A

nicotine

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2
Q

Only ganglionic drug used

A

mecamylamine

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3
Q

low dose nicotine effects on physiology of human body

A

stimulator of nicotinic receptor

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4
Q

high dose nicotine effects on physiology of human body

A

Inhibits nicotinic receptor signalling leading to desensitization of receptors

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5
Q

What occurs when Nicotine increase at nicotinic receptor sites

A

increase response then suppresses the signaling from nicotinic receptors

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6
Q

Nicotine effects on which nicotinic receptors

A
  • CNS: neuronal brain subtype
  • Cardiovascular and GI: subtype in autonomic ganglia
  • Muscular subtype in neuromuscular junctions
    ALL NICOTINIC RECEPTORS
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7
Q

2 phases of nicotine poisoning

A
  1. Stimulatory phase
  2. Depressor phase
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8
Q

Stimulatory phase symptoms

A

-Nausea/vomitting
- sweating
- seizures
-excessive salvation
-headache
-hypertension
-tachycardia
- tremor
- ETC negative impacts

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9
Q

Depressor phase symptoms

A

Basically the opposite
- hypotension
- bradycardia
- respiratory failure
- difficulty breathing
- muscle weakness
- coma
- CNS depression
Diaphragm paralysis

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10
Q

green tobacco sickness

A

nicotine poisoning that occurs while handling tobacco plants. High risk with clothing absorption

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11
Q

green tobacco sickness symptoms

A

Nausea, vomitting, headaches, difficulty sleeping/eating, dizziness
-similar to heat illness and organophosphate posioning

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12
Q

fatal dose of nicotine

A

60mg in a adult

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13
Q

what makes nicotine posinoning in the body so difficult to acheive

A

Nicotine is metabolized very rapidly and inactivated.

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14
Q

What drug to give when cardiovascular symptoms arise from nicotine poisoning

A

Norepinephrine

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15
Q

What must be done to a patient if CNS and skeletal muscle symptoms such as respiratory paralysis occur

A

Give patient artificial ventilation.

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16
Q

Forms of nicotine cessation

A
  • gum
  • patches
  • sprays
  • Inhalers
17
Q

Strategy for smoking cessation

A

gradually decrease doses to wean patients off of addiction

18
Q

vaping uncertanties

A

-Not sure about long term health effects
- not certain about stopping smoking

19
Q

Define electronic cigarettes

A

Battery operated devices that heat a nicotine liquid producing a vapor to inhale

20
Q

vaping public health concerns

A

concerned with vaping becoming a gateway to using other tobacco products like cigarettes

21
Q

first generation vaping products

A

mimic the shape and size of cigarettes in two versions: disposables and reusables

22
Q

Second generation vaping products

A

Larger than conventional cigarettes, pen or tank style. stronger, refillable and rechargeable, allowing user to adjust contents

23
Q

Third generation vaping products

A

allow custom modifications. range of options and flavors. Adjust the heating elements. JUUL

24
Q

Liquid components of vaping product

A
  1. Nicotine (0-36mg/ml)
  2. Polyethylene glycol(produces fake smoke)
  3. Flavorings (increases youth attractiveness)
  4. Metal compounds (tin, lead, nickel, arsenic)
25
Q

Can you die from nicotine poisoning?

A

Yes

26
Q

Most predominant people for deaths related to nicotine poisoning

A

Children

27
Q

vaping adverse effects

A
  • No data for long term effects
  • vaping can be safer but have toxic chemicals
  • pulmonary issues
  • device itself can be dangerous
  • Burns, battery explodes
28
Q

E-ciggarette or vaping associated lung injury effects (EVALI)

A

Acute respiratory illness, can be developing into life threatening scenarios. More than 2800 cases, 68 deaths.
- Compromised pulmonary function
- peaked in 2019

29
Q

what is the suspicion regarding E-ciggarette or vaping associated lung injury

A

People smoking Black market THC containing Vitamin E acetate likely the problem

30
Q

mecamylamine

A

First effective therapy for hypertension. Reserved for severe hypertension and is the only drug you can get in USA

31
Q

Side effects of mecamylamine

A

Affects both sympathetic and parasympathetic ganglionic transmission

32
Q

Ganglionic blocking agents function

A

response determines by which division of ANS is dominant control of various organs

33
Q

physiologic effects of ganglionic blockade

A

effect of the blockade is the opposite of the autonomic system given for the organ

34
Q

primary determinant factor of the degree of ganglionic blockade

A

existing sympathetic tone

35
Q

heart rate change in mecamylamine treatment

A

mild tachycardia with hypotension

36
Q

how does cardiac output change in patients with normal function with mecamylamine treatment

A

cardiac output is reduced due to venodilation, pooling of blood and reduced venous return

37
Q

What occurs in a heart failure patient with compromised cardiac output with mecamylamine treatment

A

increased cardiac output due to increased peripheral resistance

38
Q

with mecamylamine treatment In hypertensive patients what occurs

A

cardiac output is reduced

39
Q
A