Which condition would indicate to the nurse that the patient has a phenytoin (Dilantin) toxicity?
Nystagmus
Strabismus
Blurry vision
Amblyopia
The Correct Answer is A
A. Nystagmus:
Nystagmus is an involuntary, rhythmic movement of the eyes, which can be rapid and jerky. It is a common neurological manifestation of phenytoin toxicity. Patients experiencing phenytoin toxicity may exhibit horizontal or vertical nystagmus, which can be detected upon physical examination.
B. Strabismus:
Strabismus, also known as crossed eyes or squint, refers to a misalignment of the eyes. While strabismus can have various causes, it is not typically associated with phenytoin toxicity. Therefore, it is less likely to indicate phenytoin toxicity compared to nystagmus.
C. Blurry vision:
Blurry vision, or visual disturbances, can occur in patients experiencing phenytoin toxicity. However, it is a non-specific symptom and can be observed in various other conditions as well. Patients with phenytoin toxicity may experience blurry vision, double vision (diplopia), or other visual disturbances due to the effects of the medication on the central nervous system.
D. Amblyopia:
Amblyopia, also known as lazy eye, is a condition characterized by reduced vision in one or both eyes. It is typically associated with visual development during childhood and is not directly related to phenytoin toxicity. Therefore, it is less likely to indicate phenytoin toxicity compared to nystagmus or other neurological manifestations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Adventitious breath sounds:
Adventitious breath sounds refer to abnormal lung sounds heard upon auscultation of the chest. These sounds include crackles (rales), wheezes, rhonchi, and pleural friction rubs. In the context of fluid volume excess, particularly in the acute phase of a cerebrovascular accident (CVA) or stroke, adventitious breath sounds such as crackles are indicative of pulmonary edema. Pulmonary edema occurs when there is an excessive accumulation of fluid in the lungs, impairing gas exchange and leading to symptoms such as shortness of breath and respiratory distress.
B. Weak pulse:
A weak pulse may suggest poor perfusion or decreased cardiac output rather than fluid volume excess. While decreased cardiac output can be a consequence of heart failure, which may be associated with fluid volume excess, a weak pulse is not a direct indicator of fluid overload. In the acute phase of a CVA, a weak pulse may prompt further assessment for other cardiovascular complications or neurogenic shock.
C. Hypotension:
Hypotension, or low blood pressure, is not typically associated with fluid volume excess. Instead, hypotension may indicate hypovolemia, shock, or other underlying cardiovascular conditions. While hypotension can occur secondary to severe heart failure or fluid overload in some cases, it is not a direct indicator of fluid volume excess in the acute phase of a CVA.
D. Poor skin turgor:
Poor skin turgor is a clinical finding associated with dehydration rather than fluid volume excess. In dehydration, the skin loses its elasticity and becomes less resilient when pinched. In contrast, fluid volume excess is characterized by edema, which may manifest as pitting or non-pitting edema, rather than poor skin turgor. However, in fluid volume excess, the skin may appear stretched or taut due to the accumulation of fluid in the interstitial spaces.
Correct Answer is ["A","B","C","D","E","F"]
Explanation
A. Muscle tremors:
Muscle tremors, particularly resting tremors, are a hallmark feature of Parkinson's disease. These tremors typically occur in the hands, fingers, arms, legs, jaw, or head and may worsen with stress or inactivity.
B. Slow body movement (bradykinesia):
Bradykinesia refers to slowness of movement and is another key symptom of Parkinson's disease. Patients may have difficulty initiating movement, experience a decrease in spontaneous movement (hypokinesia), and demonstrate reduced range of motion.
C. Rigidity:
Rigidity, or stiffness of the muscles, is a common symptom of Parkinson's disease. It often affects the limbs and trunk and can contribute to difficulty with movement and posture.
D. Pill rolling:
Pill rolling refers to a specific type of tremor characterized by rhythmic, rolling movements of the thumb and fingers, resembling the action of rolling a pill between the fingers and thumb. This tremor is commonly seen in Parkinson's disease.
E. Lack of facial expression:
Parkinson's disease can lead to a reduced range of facial expressions, also known as hypomimia or "masked facies." Patients may have a fixed, expressionless facial appearance and reduced blinking.
F. Drooling:
Drooling, or excessive salivation, can occur in Parkinson's disease due to impaired swallowing function (dysphagia) and reduced control over oral and facial muscles.
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