The SV300 is a state-of-the-art ventilator that's simple to configure, easy to operate, and versatile in use. It treats pediatric and adult patients with all acuity levels at ICUs and Intermediate Care. Adaptive With its comprehensive list of standard features, including the latest modes of ventilation, the SV300 is appropriate for all levels of patient acuity and in all care settings, from the patient's bedside to transport to another point of care. Comprehensive Equipped with functions that are usually found on intensive care ventilators, the SV300 comes with extensive ventilation modes and unique features that make it a top level ventilator. p84-s4-1 Volumetric CO₂ measurement p84-s4-2 Weaning indicators p84-s4-3 O₂ Therapy p84-s4-4 Intelli Cycle Thanks to the intuitive UI design of the SV300, each function is in logical order so that clinicians do not need to navigate a complex menu. In addition, both the valves and flow sensor support autoclaving. This safety concept is designed to meet the current clinical trends of protecting patients even under the most demanding conditions.

Since the company was founded, Mindray has been continuously exploring new ways to improve diagnostic confidence. Powered by the most revolutionary ZONE Sonography® Technology, Resona 7’s new ZST+ platform brings ultrasound image quality to a higher level by zone acquisition and channel data processing. As well as the premium level image quality, Resona 7 also enhances clinical research capabilities with the revolutionary V Flow for vascular hemodynamic evaluation, and the most intelligent plane acquisition from 3D datasets for fetal CNS diagnosis. Combining the most intuitive gesture-based multi-touch operation and all the essential clinical features, Resona 7 is truly leading new waves in ultrasound innovation. With core platform advantages of ZST+ The channel data based ZST+ is an extraordinary innovation, representing an ultrasound evolution. Transforming ultrasound metrics from conventional beamforming to channel data based processing, ZST+ is able to deliver multiple imaging advances: Advanced Acoustic Acquisition, Dynamic Pixel Focusing, Sound Speed Compensation, Enhanced Channel Data Processing and Total Recall Imaging. Advanced features V Flow V Flow (Vector Flow) is a novel approach for vascular hemodynamic analysis. V Flow uses color coded vector arrows to indicate the velocity’s magnitude and direction of blood cells. With ultra-high frame rates, it provides extremely accurate and angle-independent visualization of complex vascular hemodynamic profiles. With comprehensive data information, V Flow is the most valuable tool for vascular clinical research. resona-7-fig3-1-pc UWN+ Contrast Imaging UWN+ (Ultra-Wideband Non-linear Plus) CEUS enables the Resona 7 to detect and utilize both the 2nd harmonic and non-linear fundamental signals, generating significantly enhanced images, resulting in greater sensitivity of minor signals and longer agent duration with lower MI. Forwarding smart to clinical intelligence The Resona 7 elevates clinical intelligence with a complete solution that enables clinicians to manage both routine and advanced studies more efficiently,consistently, and accurately, from acquisition to calculation. As an example, Smart Planes CNS shows exceptional intelligence in accurate diagnosis and analysis of the fetal central nervous system (CNS) Smart Planes CNS Mindray’s exclusive pioneering technology positions the Resona 7 as the industry’s first ultrasound system to allow fully automatic and accurate detection of the most significant planes and frequently used measurements of fetal CNS, leading to intelligent diagnosis, improved throughput, and reduced user dependence. Smart Planes CNS provides a user-friendly tool that greatly improves scanning efficiency through increased accuracy coupled with automated operation. With a simple button click on a 3D fetal brain volume image, the standard CNS scanning planes (MSP, TCP, TTP and TVP) and a range of related anatomical measurements (BPD, HC, OFD, TCD, CM and LVW) are obtained immediately. Smart Face Acquiring an optimal view of the fetal face in 3D ultrasound is cumbersome and time-consuming. In some cases, it is impossible to get rid of the occlusions such as cord, placenta, uterus and extremities. The new Resona 7 with Zone Intelligence provides a fast and intelligent optimization for fetal face with simply one-touch. It can immediately remove occlusions in the volume data, eliminate unwanted noise information, and generate an optimal view of the fetal face with minimal effort. Ergonomics The Resona 7 is designed around you. Gesture-based operation opens up a new trend in cart-based ultrasound with an agile, smart, and intuitive user experience beyond your expectations. Gel warmer’s three level temperature and swiveling angle adjustment of the control panel delivers great patient comfort and user convenience.

The Resona I9, a general imaging ultrasound system with completely innovative features from inside out. All innovations are developed based on in-depth insights into complex clinical scenarios, providing accurate and timely answers as well as outstanding efficiency and a remarkable user experience. Unlimited Scanning Flexibility Beyond Imagination iConsole - Intelligent Control Panel • Intelligent and clinical exam-specific control panel layout with special E-ink keys • Breakthrough design with adaptive layout for different clinical scenarios Full-space Floating Control Panel Can be adjusted for better space utilization, Easily meet various scanning needs Thoughtful Design for Ultimate Convenience 23.8" bezel-less full-screen with large images for immersive experience Eye-protecting monitor with adaptive brightness adjustment 15.6" full-HD touch screen with intuitive interaction Short-cut switch of latest used probes and exams Bring Optimal Patient Care Immediately Just Fold Down and Go Minimum 1 meter height Easy transportation by MPV (Multi-Purpose Vehicle) for mobile service Bedside Exams Without Power Cables • Up to 4 hours continuous scanning • Auto indication of residual power when you grasp the right handle

The OnSite Troponin I Combo Rapid Test is a lateral flow chromatographic immunoassay for the qualitative detection of cardiac Troponin I (cTnI) in human serum, plasma or whole blood at a level equal to or higher than 1 ng/mL. It can be performed within 15 minutes by minimally skilled personnel, and without the use of laboratory equipment. The OnSite Troponin I Combo Rapid Test is intended to be used by healthcare professionals as an aid in the diagnosis of acute myocardial infarction (AMI). Any use or interpretation of this preliminary test result must also rely on patient’s symptoms and the professional judgment of a physician. A more precise test method such as an instrument method must be used to confirm the test result obtained by this device. Normally the level of cTnI in the blood is very low. cTnI is released into the blood stream in forms of free cTnI and cTnI-C-T complex at 4-6 hours after myocardial cell damage. The elevated level of cTnI could be as high as 50 ng/mL during 60-80 hours after AMI and remains detectable for up to 10-14 days post AMI. Therefore, circulating cTnI is a specific and sensitive marker for AMI. Clinical performance: Relative Sensitivity: 95.8% (95% CI: 91.5-97.9%) compared to a reference CLIA Relative Specificity: 99.7% (95% CI: 98.8-99.9%) Analytical sensitivity: The detection limit of cTnI is 1.0 ng/mL or greater in serum, plasma or whole blood specimen Cross-reactivity: No cross reactivity with 10 µg/mL skeletal muscle TnI, 2,000 ng/mL cardiac muscle TnT, 20 µg/mL cardiac muscle Myosin Dose hook effect: No hook effect was observed for cTnI at concentrations up to 3,521 µg/mL Interference: No interference was seen with 20 mg/dl Acetaminophen, 20 mg/dl Acetylsalicylic acid, 10.5 g/dl Albumin, 20 mg/dl Ascorbic acid, 1,000 mg/dl Bilirubin, 20 mg/dl Caffeine, 800 mg/dl Cholesterol, 200 mg/dl Creatinine, 20 mg/dl Gentistic acid, 1,000 mg/dl Hemoglobin, 600 mg/dl Oxilic acid, 1,600 mg/dl Triglycerides Shelf life: 24 months Individually sealed foil pouches containing: One cassette device One desiccant Plastic droppers Sample diluent (REF SB-R3002, 5 mL/bottle) One package insert (instruction for use) CTK Products at a Glance Insert MedlinePlus: Troponin Test Poster

Accu-Chek® Guide Blood Glucose Meter Surprisingly Clever Diabetes is complex. Your testing doesn’t have to be Item Description Diabetes is complex. Your testing doesn't have to be with the Accu-Chek® Guide blood glucose monitoring system. With a spill resistant SmartPack® vial, a strip that lets you place a small drop of blood anywhere along the end, and an app that automatically logs results to your phone, it's a surprisingly simple way to manage your diabetes. Benefits and Features Simple to log results without a paper logbook - automatically logs results right to a mySugr app on your smartphone Simple to take just one strip - spill-resistant SmartPack vial lets you take one and spill none Simple to dispose off used test strips - push-button strip ejector means you don't have to touch used strips Simple to see, day or night - strip port light for testing in daytime, nighttime or anytime Simple to be more accurate - delivers advanced 10/10 accuracy for reliable results you can trust1,2,3 Meter Specifications Models: Accu‑Chek Guide wireless blood glucose meter Serial number: Unique serial number etched into meter back Sample claims: Capillary: Yes Venous: ROW = Yes Arterial: ROW = Yes Non-fingerstick sample claim ROW: Palm, forearm, upper arm Measuring principle: FAD glucose dehydrogenase (GDH) Measuring time: Less than 4 seconds Measuring conditions: 4°C to 45 °C (39°F to 113 °F) Storage conditions: -25 °C to +70 °C (-13 °F to +158 °F) Hematocrit range: 10 to 65% Humidity range: 10 to 90 % Altitude independence: 0 to 3,094 m (10,150 ft) Memory capacity: Up to 720 measurements with date and time; 32 control measurements Test averages: 7, 14, 30 and 90 days Data transfer wireless connectivity: using Bluetooth Smart Low Energy Dimensions: 80 x 47 x 20 mm (L x W x H) Weight Approximately: 40 g with batteries Display: Large backlit LCD display with full-text capabilities Beep tone: Yes (factory setting ON) Batteries: (2) 3-volt lithium coin cell type CR2032 Auto power off: 15 seconds after removing a test strip; 90 seconds otherwise Blood volume: 0.6 μL Measuring range: 10 to 600 mg/dL Sample types: Capillary, venous, arterial and neonate Sample dosing: Capillary fill function; suitable for AST Test strip stability 18 months after production date: Test strips are stable (even after opening) until the expiry date printed on the test strip vial. Note: Test strip container must be tightly closed after each strip is removed. Storage temperature : 4 °C to 30 °C (39 °F to 86 °F)

Buy AccuTest Typhoid IgG/IgM Rapid Card Test (5 Tests) Online from Accurex. The Typhoid IgG/IgM Rapid Test is used for detection & differentiation of anti-Salmonella typhi (S. typhi) IgG and IgM in human whole blood / serum / plasma. This Typhoid test is used as a screening test and as an aid in the diagnosis of infection with S. typhi. Salmonella typhi bacteria causes typhoid Typhoid fever, typhoid symptoms symptoms are likely to develop gradually – appearing one to three weeks after exposure to the disease. There are various typhoid treatment & typhoid vaccine which can be opted after the detetction of Typhoid. Typhoid fever is caused by S. typhi, a Gram-negative bacterium. Worldwide an estimated 17 million cases and 600,000 associated deaths occur annually. Patients who are infected with HIV are at significantly increased risk of clinical infection with S. typhi. Evidence of H. pylori infection also presents an increased risk of acquiring typhoid fever. 1-5% of patients become chronic carrier harboring S. typhi in the gall bladder. The clinical diagnosis of typhoid fever depends on the isolation of S. typhi from blood, bone marrow or a specific anatomic lesion. In the facilities that can not afford to perform this complicated and time-consuming procedure, Filix-Widal test is used to facilitate the diagnosis. However, many limitations lead to difficulties in the interpretation of the Widal test. In contrast, the Typhoid IgG/IgM Rapid Test is a simple and rapid laboratory test. The test simultaneously detects and differentiates the IgG and the IgM antibodies to S. typhi specific antigen thus to aid in the determination of current or previous exposure to the S. typhi. PRINCIPLE The Typhoid IgG/IgM Rapid Test is a lateral flow immunochromatographic assay. The test cassette consists of: 1) a pink-purple colored conjugate pad containing recombinant S. typhi H antigen and O antigen conjugated with colloid gold (Typhoid conjugates) and rabbit IgG-gold conjugates, 2) a nitrocellulose membrane strip containing two test region (Test line M and G) and a control region (control line). The test line ‘M’ is pre-coated with monoclonal anti-human IgM for the detection of IgM anti-S. typhi, test line ‘G’ is pre-coated with monoclonal anti-human IgG for the detection of IgG anti-S. typhi , and the C band is pre-coated with goat anti rabbit IgG. When an adequate volume of test specimen is dispensed into the sample well of the cassette, the test specimen migrates by capillary action across the test cassette. Anti-S. typhi IgM if present in the patient specimen will bind to the Typhoid conjugates. The immunocomplex is then captured on the membrane by the pre-coated anti-human IgM antibody at test region ‘M’, forming a pink-purple line at ‘M’ region, indicating a S. typhi IgM positive test result. Anti-S. typhi IgG if present in the patient specimen will bind to the Typhoid conjugates. The immunocomplex is then captured by the pre-coated reagents on the membrane, forming a pink-purple line at test region ‘G’, indicating a S. typhi IgG positive test result. Absence of any pink-purple line at test region (M and G) suggests a negative result. The test contains an internal control (control line) which should exhibit a pink-purple line of the immunocomplex of goat anti rabbit IgG/rabbit IgG-gold conjugate regardless of the color development on any of the test region. Otherwise, the test result is invalid and the specimen must be retested with another device. PRECAUTION 1. This package insert must be read completely before performing the test. Failure to follow the insert gives inaccurate test results. 2. Do not open the sealed pouch, unless ready to conduct the assay. 3. Do not use expired devices. 4. Bring all reagents to room temperature (15°C-30°C) before use. 5. Do not use the components in any other type of test kit as a substitute for the components in this kit. 6. Do not use hemolized blood specimen for testing. Wear protective clothing and disposable gloves while handling the kit reagents and clinical specimens. Wash hands thoroughly after performing the test. 7. Users of this test should follow the US CDC Universal Precautions for prevention of transmission of HIV, HBV and other blood-borne pathogens. 8. Do not smoke, drink, or eat in areas where specimens or kit reagents are being handled. 9. Dispose of all specimens and materials used to perform the test as biohazardous waste. 10. Handle the Negative and Positive Control in the same manner as patient specimens. 11. The testing results should be read within 15 minutes after a specimen is applied to the sample well or sample pad of the device. Read result after 15 minutes may give erroneous results. 12. Do not perform the test in a room with strong air flow, ie. an electric fan or strong air-conditioning. Other Info STORAGE AND STABILITY Typhoid IgG/IgM test card should be stored at 4-40°C. The card may be stored at room temperature but not exceeding 40°C in the original sealed pouch. The shelf life or expiry of the card is printed on Pouch as well as carton label. The test kit should be kept away from direct sunlight, moisture and heat.

Buy AccuTest Malaria Pf(HRP II)/Pv Rapid Card Test (50 Tests) Online from Accurex. This Malaria test is a rapid qualitative, chromatographic immunoassay for the detection of malaria infection in human blood sample indicating differential diagnosis between Plasmodium falciparum and Plasmodium vivax species. This Malaria parasite test kit has test strips coated with Monoclonal Anti-p LDH antibodies (test line Pv) specific to the lactate dehydrogenase of P. vivax species and the other (test line Pf) with Monoclonal Anti-HRP-II which is specific to the Histidine Rich Protein-II of P. falciparum. AccuTest Malaria Pf(HRP II)/Pv is a rapid qualitative, chromatographic immunoassay for the detection of malaria infection in human blood sample indicating differential diagnosis between Plasmodium falciparum and Plasmodium vivax species. PRINCIPLE: AccuTest Malaria Pf (HRP II)/Pv test utilizes the principle of immuno-chromatography. It has the test strip coated with Monoclonal Anti-pLDH antibodies (test line Pv) specific to the lactate dehydrogenase of P.vivax species and the other (test line Pf) with Monoclonal Anti-HRP-II which is specific to the Histidine Rich Protein-II of P.falciparum. As the test sample flows through the membrane assembly of the device after addition of the buffer solution, the colored colloidal gold, anti-pLDH antibody and the anti-HRP-II antibody conjugate complexes with the lysed blood sample. The Malaria antigens get immobilized on the respective test lines on the nitrocellulose membrane which leads to the formation of red/purple colored band/s. The un-reacted conjugate and unbound complex if any moves further on the membrane and are subsequently immobilized at the control “C” region forming a red/purple band. This control band serves to validate the test performance and should always appear. This test is intended for professional use and must be used by trained personnel. Related products Safety Information PRECAUTIONS: 1. For in-vitro diagnostic use only. 2. The device is sensitive to humidity as well as to heat. So, it’s very important to take out the device from the sealed pouch just before use. 3. Do not use the kit after the expiration date. 4. Dispose all the samples and kits properly after test, in accordance with GLP. 5. Do not pipette reagent or blood by mouth. Direction for Use Procedure: 1. Disinfect with alcohol swab 2. Punture by lancet 3. Collect blood upto marking on sample dropper Other Info STORAGE AND EXPIRATION: 1. AccuTest Malaria Pf(HRP II)/Pv test kit should be stored between 4 – 30ºC. 2. Expiration date of this kit is 18 months after its manufacture date.

Buy AccuTest HBsAg Rapid Card Test (50 Tests) Online from Accurex. HBsAg means Hepatitis B surface antigen which is a protein on the surface of hepatitis B virus. It can be detected in high levels in serum during acute or chronic hepatitis B virus infection. HBsAg positive indicates that the person is infectious. The hbsag test kit is a one-step immunochromatographic assay based on the antigen capture, or Sandwich principle. HBsAg positive treatment may include Antiviral medications. AccuTest HBsAg Card Test Hepatitis BHepatitis B is a viral infection that attacks the liver and can cause both acute and chronic disease. An estimated 240 million people are chronically infected with hepatitis B (defined as hepatitis B surface antigen positive for at least 6 months). Laboratory diagnosis of hepatitis B infection focuses on the detection of the hepatitis B surface antigen HBsAg. Hepatitis B surface antigen (HBsAg) consists of lipid carbohydrate and protein elements; the protein moiety provides a marker for identification of chronic, infectious BBV infections. Hepatitis B is transmitted sexually or intravenously and has an incubation period of six months. If not diagnosed properly and in time, it can develop into acute or chronic infection, liver cirrhosis and fulminant hepatitis. This test is very useful for screening blood donors, to find out whether they are HBsAg positive before collection of blood. Principle: AccuTest HBsAg is a qualitative test based on immunochromatography sandwich principle. The test card includes a combination of monoclonal anti-body gold conjugate (colloidal gold) and polyclonal solid phase antibodies which selectively binds Hepatitis B surface antigen with high degree of sensitivity. The HBsAg test is a one-step immunochromatographic assay based on the antigen capture, or Sandwich principle. The method uses monoclonal antibodies conjugated to colloidal gold and polyclonal antibodies immobilized on a nitrocellulose strip in a thin line. The test sample is introduced into well and flows laterally through an absorbent pad where it mixes with the signal reagent. If sample contains HBsAg, the colloidal gold-antibody (mouse) conjugate binds to the antigen, forming an antigen-antibody-colloidal gold complex. The complexes then migrate through the nitrocellulose strip by capillary action, which are stopped by an immobilized antibody zone forming a purple band. The formation of the first purple band (T zone) is indicative of hepatitis positive. To serve as a procedural control, an additional line of antibody antimouse IgG has been immobilized on the card. If the test is performed correctly, this will result in the formation of purple and upon contact with the conjugate as a control line. Safety Information AccuTest HBsAg test kit is designed lor detection of Hepalitis B Surface Antigenin the specimen. As with all diagnostic tests, il is recommended to interpret all the results in line wilh clinical manifestations, other lest resulls & clinicians’s view colleclively. If the lest device is showing stagnancy in flow on chromalography, it is most likely due lo problem in the sample. In this case, relest with a fresh sample or diluted sample. Direction for Use Test Procedure: 1. Allow the test, specimen and or control to room temperature prior to the testing 2. Remove one test card from the pouch and place it on a clean flat surface 3. Using the dropper provided one drop of serum/plasma or W. blood sample (25 ul), wait for few seconds till the Whole blood absorbed by sample pad (approx. 30 second), 4. Add 2-3 drops of buffer (60 ul) into the sample well. (If needed add one more drop of assay buffer). 5. Let reaction proceed until the appearance of positive line and control line or up to 20 minutes. 6. Read results after 20 minutes, strong positive reaction may visible within 5 minutes. 7. If negative or questionable results are obtained, the HBV infection is suspected, the test should be repeated ona fresh serum specimen. Storage: AccuTest HBsAg should be stored at 4-30C. However, the card may be stored at room temperature not exceeding 30C in the original sealed pouch.

Buy AccuTest H Pylori AB Rapid Card Test (50 Tests) Online from Accurex. The Helicobacter Pylori is a lateral flow chromatographic immunoassay for the qualitative detection of antibodies to H.pylori in human Whole Blood/Serum/Plasma. H Pylori test provides an aid in the diagnosis of infection with H.pylori. H.pylori is implicated in the etiology of a variety of gastrointestinal diseases, including duodenal and gastric ulcer, non-ulcer dyspepsia and active and chronic gastritis. h pylori symptoms are an ache or burning pain in your stomach (abdomen), Nausea, Loss of appetite, Frequent burping, Bloating & Unintentional weight loss NTENDED USE The H.pylori Antibody Rapid Test Card is a lateral flow chromatographic immunoassay for the qualitative detection of antibodies to H.pylori in human Whole Blood/Serum/Plasma. It provides an aid in the diagnosis of infection with H.pylori. INTRODUCTION H.pylori is implicated in the etiology of a variety of gastrointestinal diseases, including duodenal and gastric ulcer, non-ulcer dyspepsia and active and chronic gastritis. H.pylori infection is found in more than 90% of duodenal ulcer patients and in around 75% of all peptic ulcer sufferers. H.pylori infection is also more common in gastric cancer patients. The risk of gastric cancer has been estimated to be six-fold higher in H.pylori infected populations than in uninfected populations. H.pylori infections occur in human populations throughout the world. In developed countries, about 50% of the population may have H.pylori infection by the age of 60 years, while only 10-20% of adults in the third decade of life have it. Transmission is most probably by the fecal-oral or oral-oral route. Both invasive and non-invasive methods are used to diagnose H.pylori infection in patients with symptoms of gastrointestinal disease. Invasive methods include culture of gastric biopsy samples, histologic examination of stained biopsy specimens, or direct detection of the urease activity in the biopsy (CLO test). These methods need to obtain a biopsy sample by endoscopy.which is expensive,and usually results discomfort and risk to the patient.noninasive techniques include urea breath tests and serological methods. Urea breath test requires expensive laboratory equipment and moderate radiation exposure. Serologic tests are employed to detect antibodies as human immune response to H.pylori, for example the ELISA and the Western immunoblot. The H.pylori Antibody Rapid Test Card detect antibodies to H.pylori infection in human Whole Blood/Serum/Plasma. It is a noninvasive method and does not use radioactive isotopes. The test is easy to perform and requires no specialized equipment. Visual interpretation provides an accurate qualitative result. It is a useful on-site aid in the diagnosis of H.pylori infection. Diagnosis of H.pylori infection by antibody immunoassay can reduce the number of patients requiring endoscopy. PRINCIPLE The H.pylori Antibody Rapid Test Card is an immunoassay based on the principle of the double antigen-sandwich technique. During testing, a Whole Blood/Serum/Plasma specimen migrates upward by capillary action. The antibodies to H.pylori if present in the specimen will bind to the H.pylori conjugates. The immune complex is then captured on the membrane by the pre-coated H.pylori antigens, and a visible pink-purple line will show up in the test line region indicating a positive result. If antibodies to H.pylori are not present or are present below the detectable level, a pink-purple line will not form in the test line region indicating a negative result. To serve as a procedural control, a pink-purple line will always appear at the control line region, indicating that proper volume of specimen has been added and membrane wicking has occurred. Safety Information The H.pylori Antibody Rapid Test Card is limited to provide a qualitative detection. The intensity of the test line does not necessarily correlate to the concentration of the antibody in the blood. x The results obtained from this test are intended to be an aid in diagnosis only. Each physician must interpret the results in conjunction with the patient’s history, physical findings, and other diagnostic procedures. x A negative test result indicates that antibodies to H.pylori are either not present or at levels undetectable by the test. Direction for Use TEST PROCEDURE 1. Remove the test cassette from the sealed pouch and use it as soon as possible. 2. Place the test cassette on a clean and level surface. 3. For serum or plasma specimen: Hold the dropper vertically and transfer 3 drops of serum or plasma to the specimen well (S) of the test cassette, then start the timer. See illustration below. 4. For whole blood specimens: Hold the dropper vertically and transfer 1 drop of whole blood (approximately 30μl) to the specimen well(S) of the test cassette, then add 2 drops of buffer (approximately 70μl) and start the timer. 5. Read results at 15 minutes. Do not interpret the result after 20 minutes. Other Info STORAGE AND STABILITY x Store as packaged in the sealed pouch at 4-40℃. The kit is stable within the expiration date printed on the label. x Once open the pouch, the test should be used within one hour. Prolonged exposure to hot and humid environment will cause product deterioration.