Comparative Study of Fasting Plasma Glucose and Oral Glucose Challenge Test as Screening Method in Gestational Diabetes Mellitus

2016 ◽  
Vol 4 (1) ◽  
pp. 72
Author(s):  
S Megala Devi ◽  
Prakash K Mehta
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Plasma Glucose ◽  
Fasting Plasma Glucose ◽  
Screening Method ◽  
Challenge Test ◽  
Oral Glucose ◽  
Glucose Challenge Test ◽  
Glucose Challenge

scholarly journals The application of 50g oral glucose challenge test in screening for gestational diabetes mellitus in patients attending antenatal care OPD

2017 ◽  
Vol 6 (5) ◽  
pp. 1952
Author(s):  
Disha Andhiwal Rajput ◽  
Jaya Kundan Gedam
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Plasma Glucose ◽  
Gestational Hypertension ◽  
Challenge Test ◽  
Oral Glucose ◽  
Average Risk ◽  
Glucose Challenge Test ◽  
Glucose Challenge

Background: To screen patients at average risk for Gestational Diabetes using 50g Glucose Challenge test, to ascertain the prevalence of Gestational diabetes through further diagnostic testing and to prevent and manage complications. Gestational diabetes mellitus (GDM) is defined as carbohydrate intolerance of variable severity with onset or first recognition during pregnancy. Women with GDM are at risk for maternal and foetal complications, so it is important to screen all the pregnant woman.Methods: This study was conducted in 198 patients between 24 and 28 weeks of gestation, attending the Antenatal clinic. 50g oral glucose is administered irrespective of time of the last meal and plasma glucose is measured one hour later. Patients with plasma glucose levels more than 140 mg/dl were subjected to a 100g oral glucose tolerance test, patients with two or more abnormal reading were labelled as GDM and managed accordingly.Results: Prevalence of GDM in our study was 9.59%. Maternal complications like gestational hypertension, vaginal infections and foetal complications were much higher in GDM patients as compare to non GDM group.Conclusions: GDM is a disease which adversely affects both mother as well as foetus. It is concluded that 50 gm glucose challenge test at 24-28 weeks of gestation with a cut-off value of 140 mg/dl is a reliable screening test for GDM. This test offers the best combination of ease and economy of use and reproducibility in screening for gestational diabetes mellitus in average risk patients.

scholarly journals Response to fifty grams oral glucose challenge test and pattern of preceding fasting plasma glucose in normal pregnant Nigerians

2014 ◽  
Vol 7 (1) ◽  
pp. 26-28
Author(s):  
Omololu Adegbola ◽  
Godwin Olufemi Ajayi
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Plasma Glucose ◽  
Fasting Plasma Glucose ◽  
Challenge Test ◽  
Oral Glucose ◽  
Fasting Plasma ◽  
Glucose Challenge Test ◽  
Glucose Challenge ◽  
The Mean

Background: Diabetes mellitus in pregnancy has profound implications for the baby and mother and thus active screening for this is desirable. Method: Fifty grams oral glucose challenge test was administered after obtaining consent to 222 women in good health with singleton pregnancies without diabetes mellitus at 24 to 28 weeks gestation after an overnight fast. Venous blood sample was obtained before and 1 hour after the glucose load. A diagnostic 3-hour 100 g oral glucose tolerance test was subsequently performed in all. Results: Two hundred and ten women had a normal response to oral glucose tolerance test i.e. venous plasma glucose below these cut-off levels: fasting 95 mg/dl (5.3 mmol/l), 1 hour 180 mg/dl (10.0 mmol/l), 2 hours 155 mg/dl (8.6 mmol/l) and 3 hours 140 mg/dl (7.8 mmol/l), while 12 were found to have gestational diabetes mellitus and were subsequently excluded from the study. They were appropriately managed. The mean maternal age was 30.9 ± 4.1 years (range 19 to 45 years) and the mean parity was 1.2 ± 1.1 (range 0 to 5). The mean fasting plasma glucose was 74.5 ± 11.5 mg/dl (range 42 to 117 mg/dl), while the mean plasma glucose 1 hour after 50 g glucose challenge test was 115.3 ± 19.1 mg/dl (range 56 to 180 mg/dl). Conclusions: The mean fasting plasma glucose in normal pregnant Nigerians was 74.5 ± 11.5 mg/dl (range 42 to 117 mg/dl). There is a need to re-appraise and possibly review downwards the World Health Organization fasting plasma glucose diagnostic criteria in pregnant Nigerians for better detection of gestational diabetes mellitus. Pregnant women with venous plasma glucose greater than 153.5 mg/dl (8.5 mmol/l) 1 hour after 50 g glucose challenge test are strongly recommended for diagnostic test of gestational diabetes mellitus.

scholarly journals One step oral glucose challenge test as screening and diagnostic test for Gestational Diabetes Mellitus

2019 ◽  
Vol 14 (2) ◽  
pp. 42-45
Author(s):  
Manisha Yadav ◽  
Gehanath Baral
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Diagnostic Test ◽  
Challenge Test ◽  
Single Step ◽  
Oral Glucose ◽  
Fasting State ◽  
Glucose Challenge Test ◽  
Glucose Challenge

Aim: The Diabetes in Pregnancy Study Group of India (DIPSI, 2010) guidelines recommend the non-fasting 75-g oral glucose challenge test (OGCT) as a single-step screening and diagnostic test for gestational diabetes mellitus (GDM). The aim of this study was to assess the validity of DIPSI criteria by comparing with the World Health Organization (WHO) 1999 criteria of diagnosing GDM. Methods: This study was a hospital based prospective comparative study conducted among 282 pregnant women, of gestational age of 24-28 weeks attending antenatal OPD of Patan hospital. The OGCT was performed on them irrespective of fasting state and without any dietary preparation and they were again asked to come after 3 days of unrestricted carbohydrate diet in fasting state for WHO 2-hour oral glucose tolerance test (OGTT) with 75 gram of glucose load. The value of OGCT >140 mg/dl is diagnostic of GDM (DIPSI 2010). For the reliability of this test, it was compared with WHO 2-hour OGTT. Results: Among the study population, the mean age and BMI was 26.04±4.50 and 24.08±3.30 respectively. Out of 282 patients, 8 cases (2.83%) were found to have abnormal non-fasting 75-g OGCT and 4 cases (1.41%) had abnormal WHO 2-hour OGTT. Paired t test was employed to examine the difference of blood glucose level of the tests. There was statistically significant difference (p<0.001) between the tests. The Sensitivity, specificity, positive predictive value and negative predictive value of oral glucose challenge test was 25%, 97.48%, 12.5% and 98.90% respectively. The non- fasting 75-g OGCT was able to detect only 25% of the cases. Conclusions: Though the non-fasting 75-g OGCT test is cost effective and more compliant to pregnant women, the present report suggests that it cannot be used as a single step screening and diagnostic test because of its low sensitivity. However, it is an adequate alternative for screening test in resources limited areas.

Effect of Prolonged Fasting Duration on 50 Gram Oral Glucose Challenge Test in the Diagnosis of Gestational Diabetes Mellitus

2018 ◽  
Vol 50 (09) ◽  
pp. 671-674
Author(s):  
Necati Hancerliogullari ◽  
Hatice Celik ◽  
Burcu Karakaya ◽  
Aytekin Tokmak ◽  
Yasemin Tasci ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Challenge Test ◽  
Oral Glucose ◽  
Glucose Levels ◽  
Glucose Challenge Test ◽  
Number Of Patients ◽  
Glucose Challenge ◽  
Fasting Duration

AbstractThe aim of this study was to investigate the association between fasting duration before screening with 50 g glucose challenge test (GCT) and the test outcome. For this cross-sectional study, we enrolled 508 low-risk pregnant women who underwent 50 g GCT between the 24 and 28 weeks of gestation. We excluded women with pregestational diabetes, multiple gestations or a history of gestational diabetes mellitus (GDM), and macrosomia. We evaluated fasting durations, GCT results, and demographic features. A significant positive correlation was found between fasting duration and 50 g GCT values (r=0.122; p=0.006), and the best cut-off value was found to be 6.5 h, with 85.85% sensitivity and 38.61% specificity (relative risk, 2.73; 95% CI, 1.893–3.936; p<0.0001). Further, we divided the patients into two groups: study (fasting, <6.5 h; n=146) and control (fasting,>6.5 h; n=362) groups. Notably, the mean glucose levels, number of patients with GCT>140 mg/dl, and rates of unnecessary 100 g loadings were significantly higher in the study group. We found no significant differences between the groups in terms of the fasting plasma glucose levels and GDM prevalence. According to our findings, fasting duration of>6.5 h resulted in 2.7 times more unnecessary 100 g glucose tolerance tests (GTT). We recommend that patients having fasted for>6.5 h receive a one-step 75 g GTT after completing 8-h fasting.

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