The nurse is reviewing the record of a client with a diagnosis of cirrhosis and notes that there is documentation of the presence of asterixis. How should the nurse assess for its presence?
Measure the abdominal girth
Have the client extend their arms
Have the client flex and extend their foot
Ask the client to walk heel to toe
The Correct Answer is B
Choice A Reason: Measuring the abdominal girth is not related to asterixis, which is a tremor of the hand when the wrist is extended. It may indicate ascites, which is a complication of cirrhosis, but not asterixis.
Choice B Reason: This is the correct choice. Asterixis is a flapping tremor of the hand when the wrist is extended, sometimes said to resemble a bird flapping its wings. It is caused by abnormal function of the diencephalic motor centers that regulate the muscles involved in maintaining posture. It is a sign of hepatic encephalopathy, which is a neuropsychiatric disorder that occurs in patients with liver disease.
Choice C Reason: Having the client flex and extend their foot is not related to asterixis, which affects the hand and wrist. It may test for ankle clonus, which is a rhythmic contraction of the calf muscles when the foot is dorsiflexed. It indicates an upper motor neuron lesion, but not hepatic encephalopathy.
Choice D Reason: Asking the client to walk heel to toe is not related to asterixis, which affects the hand and wrist. It may test for balance and coordination, which can be impaired in patients with hepatic encephalopathy, but it is not a specific sign of asterixis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: This is incorrect because allergies are not a risk factor for developing Barrett's esophagus. Allergies are hypersensitive reactions of the immune system to certain substances, such as pollen, dust, or food. They can cause symptoms such as sneezing, itching, or hives, but they do not affect the esophagus or stomach acid.
Choice B reason: This is the correct answer because gastroesophageal reflux disorder (GERD) is the most common risk factor for developing Barrett's esophagus. GERD is a condition where the lower esophageal sphincter (LES) does not close properly and allows stomach acid to flow back into the esophagus. This can cause inflammation, irritation, and damage to the esophageal lining. Over time, this can lead to changes in the cells of the esophagus, which is called Barrett's esophagus.
Choice C reason: This is incorrect because being a vegetarian is not a risk factor for developing Barrett's esophagus. Being a vegetarian means avoiding meat and animal products in the diet. This can have health benefits such as lower cholesterol and blood pressure levels, but it does not affect the esophagus or stomach acid.
Choice D reason: This is incorrect because Barrett's esophagus is not a genetic condition that one is born with. Barrett's esophagus is an acquired condition that results from chronic exposure to stomach acid in the esophagus. It is not inherited from one's parents or passed on to one's children.
Correct Answer is D
Explanation
Choice A Reason: Culture is not a diagnostic test that uses an ultraviolet light source, but a laboratory test that involves growing microorganisms from a sample of body fluid or tissue. Culture can help identify the type and sensitivity of the infection-causing agent.
Choice B Reason: KOH is not a diagnostic test that uses an ultraviolet light source, but a chemical test that involves applying potassium hydroxide to a sample of skin, hair, or nail. KOH can help diagnose fungal infections by dissolving the keratin and revealing the fungal elements under a microscope.
Choice C Reason: Diascopy is not a diagnostic test that uses an ultraviolet light source, but a physical test that involves applying pressure to a lesion with a glass slide or lens. Diascopy can help differentiate between blanchable and non-blanchable lesions, such as erythema or petechiae.
Choice D Reason: Wood's is a diagnostic test that uses an ultraviolet light source, also known as a Wood's lamp or black light. Wood's can help observe color changes to the skin that are not visible under normal light, such as fluorescence or hypopigmentation. Wood's can help diagnose conditions such as tinea capitis, vitiligo, or erythrasma.
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