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NEWEST UPDATE, .JUNE 6 TH
UPDATE 2025
,You respond to a residence for a 68-year-old male with
nausea, vomiting, and blurred vision. As you are
assessing him, he tells you that he has congestive heart
failure and atrial fibrillation, and takes numerous
medications. The cardiac monitor reveals atrial
fibrillation with a ventricular rate of 50 beats/min. Which
of the following medications is MOST likely responsible
for this patient's clinical presentation? -CORRECT
ANSWER Digoxin.
This patient has classic signs of digitalis toxicity. Digoxin is
commonly prescribed to patients with congestive heart
failure and atrial fibrillation (A-Fib) or atrial flutter (A-
Flutter). Its positive inotropic effects increase cardiac
contractility and maintain cardiac output, while its
negative chronotropic effects control the ventricular rate
of the A-Fib or A-Flutter. Digitalis preparations (ie,
Lanoxin, Digoxin) have a narrow therapeutic index—that
is, there is a fine line between a therapeutic and toxic
dose. You should suspect digitalis toxicity in any patient
who takes Digoxin or Lanoxin and presents with
complaints such as nausea, vomiting, abdominal pain,
,anorexia, or blurred/yellow vision. Additionally, virtually
any cardiac dysrhythmia can be caused by the toxic
effects of digitalis. Treatment involves the administration
of Digibind, which is given at the hospital.
Which of the following is an absolute contraindication for
fibrinolytic therapy? -CORRECT ANSWER Subdural
hematoma 3 years ago.
According to current emergency cardiac care (ECC)
guidelines, absolute contraindications for fibrinolytic
therapy include ANY prior intracranial hemorrhage (ie,
subdural, epidural, intracerebral hematoma); known
structural cerebrovascular lesion (ie, arteriovenous
malformation); known malignant intracranial tumor
(primary or metastatic); ischemic stroke within the past 3
months, EXCEPT for acute ischemic stroke within the past
3 hours; suspected aortic dissection; active bleeding or
bleeding disorders (except menses); and significant
closed head trauma or facial trauma within the past 3
months. Relative contraindications (eg, the physician
, may deem fibrinolytic therapy appropriate under certain
circumstances) include, a history of chronic, severe,
poorly-controlled hypertension; severe uncontrolled
hypertension on presentation (SBP > 180 mm Hg or DBP
> 110 mm Hg); ischemic stroke greater than 3 months
ago; dementia; traumatic or prolonged (> 10 minutes)
CPR or major surgery within the past 3 weeks; recent
(within 2 to 4 weeks) internal bleeding; noncompressible
vascular punctures; pregnancy; prior exposure (> 5 days
ago) or prior allergic reaction to streptokinase or
anistreplase; active peptic ulcer; and current use of
anticoagulants (ie, Coumadin).
A middle-aged man presents with chest discomfort,
shortness of breath, and nausea. You give him
supplemental oxygen and continue your assessment. As
your partner is attaching the ECG leads, you should: -
CORRECT ANSWER Administer up to 325 mg of aspirin.
Since oxygen has already been administered to this
patient and your partner is attaching the ECG leads, you