A nurse is reinforcing teaching about a tonometry examination with a client who has manifestations of glaucoma. Which of the following statements should the nurse include in the teaching?
This test will measure the intraocular pressure of the eye.
Tonometry will allow inspection of the optic disc for signs of degeneration.
Tonometry is performed to evaluate peripheral vision.
This test will diagnose the type of your glaucoma.
The Correct Answer is A
Choice A Reason:
Tonometry is a diagnostic test that measures the intraocular pressure (IOP) inside the eye. This measurement is crucial for detecting and managing glaucoma, as elevated IOP is a significant risk factor for the disease. By measuring the pressure, healthcare providers can assess the risk of optic nerve damage and initiate appropriate treatments to prevent vision loss.
Choice B Reason:
Tonometry does not allow for the inspection of the optic disc for signs of degeneration. This function is typically performed using ophthalmoscopy or optical coherence tomography (OCT), which provide detailed images of the optic nerve and retina. These tests are essential for evaluating the structural damage caused by glaucoma but are not part of the tonometry procedure.
Choice C Reason:
Tonometry is not performed to evaluate peripheral vision. Peripheral vision is assessed using perimetry or visual field testing, which maps the field of vision and detects areas of vision loss. This test helps determine the extent of visual impairment caused by glaucoma but is separate from tonometry.
Choice D Reason:
Tonometry does not diagnose the type of glaucoma. While it measures intraocular pressure, diagnosing the specific type of glaucoma requires a comprehensive eye examination, including gonioscopy to examine the drainage angle of the eye and other tests to assess optic nerve health and visual field. Therefore, tonometry is just one component of the diagnostic process.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
A sedentary lifestyle is a significant risk factor for developing type 2 diabetes mellitus. Lack of physical activity can lead to obesity, which is a major contributor to insulin resistance. Regular physical activity helps to maintain a healthy weight, improve insulin sensitivity, and reduce the risk of developing type 2 diabetes.
Choice B Reason:
A triglyceride level of 100 mg/dL is within the normal range and is not considered a risk factor for type 2 diabetes. Elevated triglyceride levels (above 150 mg/dL) are associated with an increased risk of developing type 2 diabetes, but a level of 100 mg/dL does not indicate an increased risk.
Choice C Reason:
A recent viral infection is not a recognized risk factor for type 2 diabetes While certain viral infections can trigger autoimmune responses leading to type 1 diabetes, they are not linked to the development of type 2 diabetes, which is primarily influenced by lifestyle factors and genetics.
Choice D Reason:
A blood glucose level of 98 mg/dL is within the normal range for fasting blood glucose and does not indicate an increased risk for type 2 diabetes. Prediabetes is diagnosed when fasting blood glucose levels are between 100 and 125 mg/dL, and diabetes is diagnosed at levels of 126 mg/dL or higher. Therefore, a blood glucose level of 98 mg/dL is not a risk factor for type 2 diabetes.
Correct Answer is D
Explanation
Choice A Reason:
Febrile non-hemolytic transfusion reactions (FNHTRs) are common and typically present with fever, chills, and sometimes rigors. However, they do not usually cause severe symptoms such as back pain and difficulty breathing. FNHTRs are generally less severe and are caused by the recipient’s immune response to donor white blood cells or cytokines in the transfused blood.
Choice B Reason:
Allergic reactions to blood transfusions can range from mild to severe. Mild reactions may include itching, hives, and rash, while severe reactions (anaphylaxis) can cause difficulty breathing and hypotension. However, allergic reactions do not typically cause back pain, which is more indicative of a hemolytic process.
Choice C Reason:
Fluid overload, also known as transfusion-associated circulatory overload (TACO), can occur when too much blood is transfused too quickly. Symptoms include dyspnea, hypertension, and pulmonary edema. While difficulty breathing is a symptom of fluid overload, chills and back pain are not typical features.
Choice D Reason:
Acute hemolytic transfusion reaction (AHTR) is the most likely cause of the patient’s symptoms. AHTR occurs when the recipient’s immune system attacks the transfused red blood cells, leading to their destruction. This reaction can cause severe symptoms such as chills, fever, back pain, and difficulty breathing. It is a medical emergency that requires immediate intervention to prevent serious complications, including kidney failure and shock.
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