224. Induction Techniques Flashcards

1
Q

What are the techniques for induction of general anesthesia in children?

A

Inhalational, intravenous (IV), intramuscular (IM), rectal, and combinations of these modalities.

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2
Q

What factors influence the choice of induction technique for children?

A

Age of the child, level of cooperation, surgical procedure, medical history, plan for discharge, and preferences of anesthesiologists, family, and the patient.

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3
Q

True or False: Parental presence during induction is beneficial for all children.

A

False

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4
Q

When is appropriate parental presence reserved during anesthesia induction?

A

For elective procedures and children with stranger and separation anxiety.

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5
Q

Inhalational induction is most commonly performed due to its _______.

A

[noninvasive nature]

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6
Q

What is the initial mixture used in inhalational induction for sedation?

A

Nitrous oxide–oxygen mixture in a 2:1 ratio.

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7
Q

What is the typical dosage of propofol for induction in children?

A

2–3 mg/kg.

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8
Q

What are the contraindications for using inhalational agents?

A

Risk for malignant hyperthermia and Duchenne muscular dystrophy.

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9
Q

What are the side effects of etomidate?

A

Pain on injection, myoclonic movements, postoperative nausea and vomiting, potential adrenal suppression.

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10
Q

What is the role of ketamine as an induction agent?

A

It has analgesic properties and bronchodilating effects.

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11
Q

What is the onset of action for intramuscular ketamine?

A

Approximately 4–6 minutes.

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12
Q

Fill in the blank: Nonintravenous agents are for patients who are _______.

A

[uncooperative, cognitively handicapped, and refuse all modes of sedation]

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13
Q

What is a common provider-induced error during mask ventilation?

A

Upper airway obstruction.

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14
Q

What are typical maneuvers to relieve upper airway obstruction?

A

Jaw thrust, neck extension, applying CPAP of at least 10–15 cm H2O.

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15
Q

What can trigger laryngospasm during induction?

A

Insufficient depth of anesthesia, blood or secretions in the airway, mechanical airway stimulation.

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16
Q

What are the risk factors for bronchospasm during anesthesia induction?

A

Reactive or obstructive airway diseases, recent upper respiratory tract infections, secondhand smoke exposure, gastroesophageal reflux disease.

17
Q

What are the cardiovascular adverse effects of higher concentrations of sevoflurane?

A

Myocardial depression, depressed respirations, decreased systemic vascular resistance.

18
Q

What is the recommended treatment for bronchospasm during induction?

A

Inhaled β-adrenergic agonists with or without a small dose of intravenous epinephrine.

19
Q

Indications for intravenous induction include which patient scenarios?

A

Older children, emergency surgeries, patients with risk of aspiration.

20
Q

What is the recommended administration of midazolam for ketamine induction?

A

To avoid psychomimetic side effects.

21
Q

What is the dosage for etomidate?

A

0.2 to 0.3 mg/kg.

22
Q

What are the limitations of rectal induction in children?

A

Poor drug availability due to unpredictable drug absorption and delayed recovery after surgery.