What is the value of x in the equation 
?
A. 12
B. 27
C. 6
D. 36
Answer: A
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A 48-year-old male is sitting upright in bed in respiratory distress. He describes an acute onset of difficulty breathing and chest pain during the night that has been worsening for the past 3 hours. He also complains of nausea. Pain is described as a substernal pressure radiating to his left shoulder. Physical examination reveals cool, diaphoretic skin and rales on auscultation bilaterally. Medical history includes two prior myocardial infarctions. Medications include Zestril and metoprolol. HR = 132, BP = 140/100, RR = 25, SaO2 = 92%. Which of the following is NOT indicated?
A) Adenosine B) Enalapril C) Morphine D) Nitroglycerin
A patient with a past medical history of angina is complaining of chest discomfort. When assessing the patient, which sign or symptom should alert the EMT that the patient is probably suffering an acute myocardial infarction and not an anginal attack?
A) Pain radiates into the left arm. B) The patient complains of mild shortness of breath. C) Chest discomfort is not relieved by nitroglycerin. D) Patient's skin is not diaphoretic.
You are called to a residence for seizure activity. On scene, the patient's daughter tells you that her father, who has diabetes, stated that he suddenly felt dizzy and then fell to the floor. Within a few seconds, he began asking what had happened and why he was on the floor. Based on this description, the EMT should recognize which condition?
A) Generalized seizure B) Diabetic reaction C) Aura of a pending seizure D) Syncopal episode
Excitation causes
A) depolarization. B) hyperpolarization. C) repolarization. D) none of the above.