A person with digoxin toxicity would have which of these symptoms? (Select All that Apply)
Vomiting
Nausea
Blurred Vision
Headache
Muscle aches
Correct Answer : A,B,C
A) Vomiting:
Vomiting is a common symptom of digoxin toxicity. It occurs as a result of the toxic effects of digoxin on the gastrointestinal system. It is often one of the first symptoms that precede more severe signs of toxicity, such as arrhythmias and changes in vision. Vomiting, nausea, and anorexia are classic early signs of digoxin toxicity.
B) Nausea:
Nausea is another early sign of digoxin toxicity. It occurs due to the direct effects of the drug on the gastrointestinal tract and the central nervous system. Along with vomiting, nausea is a frequently observed symptom and often occurs before more severe manifestations like arrhythmias or confusion.
C) Blurred Vision:
Blurred vision, or seeing yellow or green halos around lights, is a hallmark sign of digoxin toxicity. This visual disturbance occurs due to the effect of digoxin on the optic nerve and the retina. This symptom is particularly important in identifying digoxin toxicity, as it is not commonly seen in other conditions.
D) Headache:
While headache may occur in a variety of clinical conditions, it is not typically a direct symptom of digoxin toxicity. Although some patients may experience headache due to general discomfort or the effects of vomiting and nausea, it is not a classic or primary indicator of digoxin toxicity. Therefore, headache is not as strongly associated with digoxin toxicity as vomiting, nausea, and blurred vision are.
E) Muscle aches:
Muscle aches are not a typical symptom of digoxin toxicity. While generalized weakness may occur due to the cardiac effects of digoxin, muscle aches are not specifically associated with toxicity.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Infections become resistant to high doses of antibiotics:
Methicillin-resistant Staphylococcus aureus (MRSA) is a strain of Staphylococcus aureus that has become resistant to the antibiotic methicillin, as well as other beta-lactam antibiotics (such as penicillin and cephalosporins). Over time, bacteria can develop resistance mechanisms, often as a result of antibiotic misuse or overuse, such as not completing a full course of treatment or using antibiotics unnecessarily. MRSA, in particular, can grow resistant to higher and higher doses of standard antibiotics, making treatment more challenging.
B) Antibiotic dosages below the minimum concentration are prescribed:
Antibiotic dosages should always be prescribed at the minimum inhibitory concentration (MIC), which is the lowest concentration of the drug that can inhibit bacterial growth. Prescribing antibiotics below this concentration would not be effective in treating the infection and could contribute to antibiotic resistance.
C) Antibiotics are prescribed only when a viral infection is present:
Antibiotics, including those prescribed for MRSA, are only effective against bacterial infections, not viral infections. For viral infections (such as the flu or common cold), antibiotics should not be used, as they are ineffective. MRSA is a bacterial infection, and it requires appropriate antibiotic therapy specifically targeted to the bacteria, not a viral infection.
D) Broad-spectrum antibiotics are used whenever possible:
While broad-spectrum antibiotics are sometimes used in initial treatments when the specific bacterial pathogen is unknown, their overuse can contribute to the development of antibiotic resistance. In the case of MRSA, a more targeted approach with antibiotics specifically effective against resistant strains (like vancomycin or clindamycin) is preferred.
Correct Answer is C
Explanation
A) Flushing of the face:
Flushing is a common and usually harmless side effect of nitroglycerin, caused by its vasodilation properties. It often resolves quickly and is not typically a cause for concern. While it can be uncomfortable, it is not a sign of a serious problem that would require immediate medical attention.
B) Dizziness upon standing:
Dizziness upon standing (orthostatic hypotension) is a known side effect of nitroglycerin due to its blood pressure-lowering effects. It typically occurs when the patient rises too quickly from a sitting or lying position. While it can be uncomfortable and may cause the patient to feel lightheaded, it is usually not an emergency and can often be managed by rising slowly. If dizziness persists or is severe, the healthcare provider should be notified, but it is not an immediate emergency.
C) Persistent chest pain that lasts longer than 15 minutes:
Chest pain lasting longer than 15 minutes could indicate a myocardial infarction (heart attack) rather than stable angina, even if nitroglycerin has been administered. Chest pain that is not relieved by nitroglycerin or persists for more than a few minutes is an emergency situation and should be reported immediately to the healthcare provider or emergency services.
D) Mild headache:
Headache is a common and benign side effect of nitroglycerin, caused by its vasodilation effect. It is usually mild and transient and does not require immediate medical attention. In most cases, the headache improves over time or with the use of over-the-counter pain relievers, and it is not a reason to contact the healthcare provider unless it becomes severe or persistent.
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