MEDICAL EMERGENCIES
1. Sodium, potassium and calcium blockade
2. Prolongs intranodal conduction and refractoriness of the AV node
What are the actions of Amiodarone (Cordarone)?
ON an ECG tracing, the QRS complex indicates?
What is ventricular depolarization?
Your patient is an ill-appearing four-month-old lying in his mother's arms. The mother tells you that the infant wont take a bottle and cries wherever he moves. Your exam reveals a lethargic infant, warm to touch, with fine pinpoint petechia on the abdomen, chest and face. The infants fontanelle appears to be bulging. The information gained on exam should lead you to suspect.
What is meningitis?
What are the contraindications of Norepinephrine?
1. Hypovolemia
2. Hypertension
The ratio between a drug's lethal dose and its effective dose is its:
What is the therapeutic index?
What is the indication for Adenosine?
1. Perfusing PSVT unresponsive to Valsalva
2. Poorly perfusing PSVT in a conscious patient
Stimulation in the vagus nerve may result in ______
What is a decreased heart rate?
Which of the following best states the normal physiological changes to vital signs during the second trimester of pregnancy?
Normal physiological changes to vital signs during the second trimester of pregnancy include a drop in blood pressure 10 - 15 mmHg due to a reduction in peripheral vascular resistance. The heart rate will increase 10 - 20 beats per minute due to an increased maternal blood volume. Note: The blood pressure will rise back to baseline in the third trimester.
What are the contraindications to Magnesium Sulfate?
1. Heart Block
2. Myocardial damage
The drug's ability to cause its expected response is referred to as its:
What is efficacy?
The cholinergic neurotransmitter is
Acetylcholine
What are the actions Diphenhydramine?
1. Completes with histamines at receptor sites
2. Reverses dystonic reations
You are assessing a 11/2 year old male who presents with obvious breathing difficulty. Inspiratory stridor is heard with evident use of all accessory muscles. The trouble breathing is worse at night. No other significant findings are visible. The child is on no medications and has otherwise been well. You suspect
What is croup?
What are three contraindications of Labetalol?
1. Uncontrolled Congestive Heart Failure
2. Greater than a 1st AV Block
3. Asthma or a history of obstructive airway disease
The desired effects of bronchodilation from the administration of albuterol is the result of stimulation of the _____receptors in the sympathetic nervous system.
What are the Beta 2 receptors?
What are the actions of Diltiazem?
1. Inhibits the influx of calcium ions during membrane depolarization of cardiac and vascular smooth muscle.
2. Decreases total peripheral resistance resulting in a decrease in both systolic and diastolic blood pressure.
You are caring for a 13 year old tricyclic antidepressant overdose. What cardiac arrhythmia is likely to develop as a result of this type of overdose?
What is Wide QRS complex and prolonged QT interval
The return of cardiac muscle to it's resting state.
What is repolarization?
What is the pediatric dose for Versed?
Pediatric: 0.1/kg IV/IO and 0.2mg/kg IN/IM
Careful titration for repeat dosages, not exceeding 2mg dose. Maximum cumulative dose of 4mg without on-line physician approval.
What are the actions of Epinephrine that treats Anaphylaxis?
1. Increases cardiac output due to increased inotropy, chronotropy and AV conduction (beta1)
2. Increases systolic blood pressure due to increased cardiac output and vasoconstriction (beta 1, alpha)
3. Alleviates wheezing and dyspnea by relaxing smooth muscles of the respiratory tract
This is the recommended dose for the treatment of pulseless v tach or v fib in a pediatric patient.
What is 5mg/kg?
What is the contraindication for Diltiazem (Cardizem)?
Should not be used in patients with Atrial Fibrillation/Flutter associated with an accessory bypass tract such as in Wolff-Parkinson-White (WPW) syndrome
The chordae tendinea connect.
What are the leaflets of the heart valves to the papillary muscles.