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)

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)

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter11: Measuring Insulin Dosages

Section: Chapter Questions

Problem 8.2P

See similar textbooks

Similar questions

If 80% of diabetic patients are correctly identified by a urine test for glucose, but 30% of non-diabetic patients are false-positives by this test, then the urine test for glucose has: a sensitivity of 70%, and a specificity of 80% a sensitivity of 20%, and a specificity of 30% a sensitivity of 30%, and a specificity of 80% a sensitivity of 70%, and a specificity of 20% a sensitivity of 80%, and a specificity of 70%
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 10000
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 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 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 increased
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 hyperglycemia
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 hyperglycemia
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
The ADA currently only recommends the Oral glucose tolerance test for the diagnosis of?
In addition to symptoms of diabetes, all the following are criteria recommended by the American Diabetes Association for use in the diagnosis of Diabetes Mellitus EXCEPT: O Random plasma glucose concentration > 180 mg/dL. O Fasting plasma glucose > 126 mg/dL. O 2-Hour glucose > 200 mg/dL during a 2 hour post prandial glucose test O Hemoglobin A1C > 6.5%
A 30-year-old woman complaining of tiredness was seen by her physician. A serum sample was collected at 2 pm. The following results were obtained (reference ranges are given in brackets):  TSH 1.3 mU/L (0.5–5)  Free T4 15 pmol/L (9–22)  Cortisol 220 nmol/L (>550 at 9 am)  The physician has asked for advice regarding the interpretation of the results and any further investigations you would recommend.  What advice would you give to the physician?
A 55-year-old male client admitted to the healthcare facility complains of excessive thirst, urination, hunger, and numbness and tingling in the extremities. His fasting plasma glucose levels obtained on two different occasions are 136 mg/dL and 145 mg/dL. A diagnosis of type 2 diabetes is made. a. What data would the nurse need to gather before preparing a dietary plan for this client?b. What instructions should the nurse provide to the client regarding dietary restrictions? 123. The wife of a 48-year-old diabetic client, who was discharged from the healthcare facility a week ago, calls the telehealth service. She sounds worried and says her husband has been showing strange symptoms, such as confusion, nervousness, and excessive hunger, for the past 2 days. He has also been complaining of blurred vision and dizziness. She tells the nurse that she had been administering insulin to her husband as directed by the healthcare provider but is not sure of the cause of his condition.a. What…