If 85% of diabetic patients are correctly identified by a urine test for glucose, but 25% of non-diabetic patients are false-positives by this test, then the urine test for glucose has: a sensitivity of 85%, and a specificity of 75% a sensitivity of 25%, and a specificity of 85% a sensitivity of 75%, and a specificity of 85% a sensitivity of 15%, and a specificity of 25% a sensitivity of 75%, and a specificity of 15%
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If 85% of diabetic patients are correctly identified by a urine test for glucose, but 25% of non-diabetic
patients are false-positives by this test, then the urine test for glucose has:
- a sensitivity of 85%, and a specificity of 75%
- a sensitivity of 25%, and a specificity of 85%
- a sensitivity of 75%, and a specificity of 85%
- a sensitivity of 15%, and a specificity of 25%
- a sensitivity of 75%, and a specificity of 15%
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- Compared to the above urine test, a blood test for glucose is more accurate in avoiding both false positive and false negative results in identifying diabetic patients. If a blood test for glucose correctly identifies 90% of diabetic patients, but gives false-positive results for 12% of non-diabetic patients, then: the blood glucose test has improved sensitivity, but reduced specificity (compared to the urine test) the blood glucose test has improved neither sensitivity nor specificity (compared to the urine test) the blood glucose test has reduced both sensitivity and specificity (compared to the urine test) the blood glucose test has improved both sensitivity and specificity (compared to the urine test) the blood glucose test has improved specificity, but reduced sensitivity (compared to the urine test)The glucose tolerance test is prescribed under which of the following patient scenarios? Ⓒ Fasting blood sugar greater than 7.8 mmol/L and patient presents with the signs and symptoms of hyperglycemia. Fasting blood sugar greater than 7.8 mmol/L Fasting blood sugar increased and patient asymptomatic. Fasting blood sugar less than 7.8 mmol/L and patient presents with the signs and symptoms of hyperglycemiaThe glucose tolerance test is prescribed under which of the following patient scenarios? Fasting blood sugar greater than 7.8 mmol/L and patient presents with the signs and symptoms of hyperglycemia. Fasting blood sugar greater than 7.8 mmol/L Fasting blood sugar increased and patient asymptomatic. Fasting blood sugar less than 7.8 mmol/L and patient presents with the signs and symptoms of hyperglycemia
- The giucose tolerance test is prescribed under which of the following patient scenarios? Fasting blood sugar greater than 7.8 mmol/L and patient presents with the signs and symptoms of hyperglycemia. Fasting blood sugar greater than 7.8 mmol/L O Fasting blood sugar increased and patient asymptomatic. Fasting blood sugar less than 7.8 mmol/L and patient presents with the signs and symptoms of hyperglycemiaThe American Diabetes Association changed the cut-off point of an HbA1c diagnostic test for diabetes from 7.0% to 6.5%. With this change in the cut-off point, which of the following occurred? The American Diabetes Association changed the cut-off point of an HbA1c diagnostic test for diabetes from 7.0% to 6.5%. With this change in the cut-off point, which of the following occurred? Sensitivity increased and specificity decreased Sensitivity decreased and specificity increased Sensitivity and specificity both decreased Sensitivity and specificity both increasedThe ADA currently only recommends the Oral glucose tolerance test for the diagnosis of?
- The screening cut-off point for the new diabetes screening test was lowered to 130mg of blood glucose per 100ml. Using this cut-off point, 230 people tested positive on the screening test. Of these, 66 people tested negative on the “gold standard” diagnostic test (that is, they did not have diabetes). The data are in the table below. Data of screening test and gold standard results "Gold-Standard" Test Screening Test Disease No Disease Total Positive 164 66 230 Negative 336 9434 9770 Total 500 9500 10000The table below shows results obtained in a new screening test for diabetes. 10,000 people were screened. The cut-off level employed was 180mg of blood glucose per 100 ml. Everyone scoring above this level was classified as positive for diabetes. Everyone scoring below this level was classified as negative for diabetes. These results were compared to a “gold standard” diagnostic test for diabetes that is considered to be completely valid. Data of screening test and gold standard results "Gold-Standard" Test Screening Test Disease No Disease Total Positive 125 25 150 Negative 375 9475 9820 Total 500 9500 10000 Calculate the positive predictive and specificity value and express it as a percent rounded to one decimal place.The table below shows results obtained in a new screening test for diabetes. 10,000 people were screened. The cut-off level employed was 180mg of blood glucose per 100 ml. Everyone scoring above this level was classified as positive for diabetes. Everyone scoring below this level was classified as negative for diabetes. These results were compared to a “gold standard” diagnostic test for diabetes that is considered to be completely valid. Data of screening test and gold standard results "Gold-Standard" Test Screening Test Disease No Disease Total Positive 125 25 150 Negative 375 9475 9820 Total 500 9500 10000
- The nurse is teaching a diabetic client to self-administer Humulin insulin, supplied in a vial labeled 100 units/mL. The provider has ordered 12 units of Humulin insulin to be taken each morning. How many milliliters of insulin would the client prepare for one dose?Clinical Case Study and Med Calculation, Liquids for Injection Aiden Avery, age 54, has a history of Type Il diabetes for 5 years. He is seen in an urgent care clinic for complaints of shortness of breath, nonproductive cough, wheezing, and dyspnea for 1 week. Mr. A is admitted to the hospital to rule out pneumonia. At present, Mr. A has no intravenous access. Medication orders: NPH insulin 10 units subcutaneous daily Regular insulin 15 units subcutaneous daily • Sliding scale insulin: ac (before meals) and at night. For blood glucose greater than 200, administer regular insulin subcutaneously, according to formula: BG-100/40= number of units of regular insulin ● ● ● ● ● ● methylprednisolone 80 mg IVP every 8 hours ticarcillin 750 mg IM now ceftazidime 400 mg IM now morphine 4 mg IM now Calculate the doses (do not round, unless directed): 1. methylprednisolone. Supply: 125 mg in 2 mL Answer 2. ticarcillin. Supply: vial of powder labeled ticarcillin; reconstitute with 2 mL of sterile…In a placebo-controlled study, 10 healthy subjects were given oral triazolam 0.5 mg before and after rifampicin 600 mg daily for 5 days. Rifampicin reduced the triazolam AUC by 95% and decreased its maximum plasma levels by 88%, when compared with placebo. The elimination half-life was reduced from 2.8 hours to 1.3 hours. Pharmacodynamic tests (drowsiness, sway, Maddox wing, etc.) showed that rifampicin abolished the effects of triazolam.a) Why is the AUC of triazolam reduced in the presence of rifampicin? b) Given the above scenario, if you were to accommodate this situation by dosage adjustment strategies, in the presence rifampicin what dose of triazolam would you have recommended, keeping dosage interval the same as when there was no rifampicin? answer part b