General Surgery Diagnostic Tests and Evaluations

At PACE Hospitals, our General Surgery Department is supported by advanced diagnostic facilities to accurately evaluate and plan treatment for various surgical conditions. A wide range of modern tests is used to ensure precise diagnosis, effective surgical planning, and improved patient outcomes.

Blood Tests

Complete Blood Count (CBC) 

CBC helps to evaluate red blood cells (RBC), white blood cells (WBC), and platelets. Low hemoglobin levels can indicate anemia, while a high white blood cell count may suggest infections or inflammation. Any kind of platelet abnormalities can point to bleeding disorders or bone marrow problems. Overall, CBC helps in detecting infections, blood disorders, and underlying chronic diseases.

Liver Function Tests (LFT) 

LFTs are the tests performed to measure enzymes and proteins such as ALT, AST, bilirubin, and albumin. Elevated enzyme levels indicate liver cell damage, while high bilirubin levels may cause jaundice. These tests are important for the diagnosis of conditions like hepatitis, fatty liver disease, liver cirrhosis, and bile duct obstruction.

Kidney Function Tests (KFT)

Kidney function tests help in assessing the levels of creatinine, urea, and electrolytes in the blood. Increased creatinine or urea suggests reduced kidney function. These tests help diagnose acute or chronic kidney disease, dehydration, and electrolyte imbalances. They are also essential for monitoring patients with diabetes or hypertension.

Blood glucose levels

Blood glucose tests measure the level of sugar present in the blood. Elevated blood glucose levels indicate diabetes or poor blood sugar control, while low levels may suggest hypoglycemia. Regular monitoring helps in diagnosing diabetes, assessing treatment effectiveness, and preventing complications.

Serum electrolytes

Serum electrolyte tests measure important minerals such as sodium, potassium, calcium, and chloride in the blood. Imbalances can indicate dehydration, kidney disorders, hormonal problems, or severe infections. For example, low sodium may cause confusion or weakness, while high potassium can affect heart rhythm. These tests are essential for diagnosing and monitoring fluid balance and critical illnesses.

Coagulation profile 

A coagulation profile assesses how well the blood clots by measuring parameters like prothrombin time /international normalized ratio and activated partial thromboplastin time. Prolonged clotting time may indicate bleeding disorders, liver disease, vitamin K deficiency, or the effect of blood-thinning medications. This test is also used before surgeries to reduce the risk of bleeding and to monitor patients with clotting abnormalities.

Blood cultures (for infections) 

These tests measure the level of sugar present in the blood. High blood glucose levels indicate diabetes or poor blood sugar control, while low levels may suggest hypoglycemia. Regular monitoring helps diagnose diabetes, evaluate treatment effectiveness, and prevent complications.

Urine & Infection Tests

Urine routine & microscopy 

This is a simple screening test that looks at the physical and microscopic characteristics of urine. It aids in the identification of pus cells, red blood cells, germs, and crystals. The presence of pus cells and bacteria indicates a UTI, whereas red blood cells could indicate stones, injuries, or malignancies. Traces of crystals in urine can point toward renal calculi, making this test useful in evaluating patients with abdominal pain or urinary complaints before surgical intervention.

Urine culture 

Urine culture is performed to identify the exact bacteria causing a urinary tract infection. It also determines which antibiotics are most effective against the organism. This helps doctors choose targeted treatment, especially in recurrent or severe infections.

Tissue culture 

This involves culturing a sample taken from deeper tissues or biopsy specimens. It is especially useful in diagnosing chronic or deep-seated infections that are not easily detected by surface cultures. Conditions like TB, fungal infections, and osteomyelitis can be detected through tissue culture. This is important for evaluating non-healing ulcers, deep soft tissue infections, and differentiating between infection and malignancy. 

Imaging Tests

Ultrasound (Abdomen / Pelvis) 

This is a non-invasive, widely available imaging modality that uses sound waves to visualize internal organs. It is particularly useful in detecting conditions like cholelithiasis, where it can clearly show stones in the gallbladder, as well as appendicitis, especially in children and pregnant women. It also helps evaluates fluid collections such as abscesses, cysts, and organ enlargement, and is commonly used in evaluating urinary obstruction, kidney stones, and pelvic pathologies.

X-ray (Chest / Abdomen)

A chest X-ray can detect conditions like pneumoperitoneum, which appears as free air under the diaphragm and indicates a perforation of a hollow organ such as the stomach or intestine. This is a surgical emergency. 

Abdominal X-rays are effective in identifying intestinal blockage, as they reveal numerous air-fluid levels and dilated bowel loops, as well as the detection of radio-opaque stones and foreign bodies. Chest X-rays are also utilized preoperatively to evaluate lung problems before to anesthesia.

Computed Tomography (Abdomen, Pelvis, Chest) 

A CT scan of the abdomen, pelvis, and chest provides detailed cross-sectional images and is highly sensitive in diagnosing complex surgical conditions. It is the investigation of choice for conditions like appendicitis when ultrasound findings are inconclusive, and for detecting complications such as perforation or abscess formation. 

CT scans are also crucial in diagnosing tumors, trauma, and inflammatory conditions like pancreatitis, as well as identifying internal bleeding and organ injuries. In chest imaging, CT helps evaluate lung pathologies, mediastinal masses, and metastasis in cancer patients.

Magnetic resonance imaging scan 

MRI scans are commonly used in general surgery to take detailed pictures of the inside of the body, especially soft tissues like muscles, organs, and blood vessels. Surgeons use MRI to diagnose conditions such as tumors, cysts, and organ abnormalities. It is particularly helpful in assessing problems with organs such as the liver, pancreas, and kidneys. When there is a suspicion of issues like a hernia, cancer, or inflammatory diseases, an MRI gives clear insights and aids in planning surgery.

PET-CT Scan 

A PET-CT scan combines two types of scans to give a complete view of the body. The PET scan shows how tissues are functioning, while the CT scan provides detailed images of the body's structure. This test is primarily used by surgeons to detect and stage cancer, as well as to assess whether the disease has spread to other parts of the body. This scan also detects conditions like colorectal or pancreatic cancer, to guide decisions on whether surgery is necessary or not.

Doppler Ultrasound 

This is a special type of ultrasound used to assess blood flow through the arteries and veins. It is used to identify conditions like deep vein thrombosis (DVT), varicose veins, and narrowed arteries. It helps surgeons evaluate the blood flow before surgery, especially in cases where vascular issues might affect healing or surgery outcomes. By showing the health of blood vessels, Doppler ultrasound allows surgeons to decide on the best treatment options.

Endoscopic Procedures

Upper GI Endoscopy (UGIE) 

An upper GI endoscopy, also called esophagogastroduodenoscopy (EGD), is a procedure that allows doctors to examine the upper part of the digestive system, including the esophagus, stomach, and duodenum. This test is particularly useful in diagnosing conditions like gastritis, ulcers, esophageal reflux, and tumors. If a patient is experiencing persistent stomach pain, nausea, or difficulty swallowing, a UGIE can provide a detailed look at what might be causing these symptoms and whether surgery is needed to treat any abnormalities, such as removing a tumor or repairing an ulcer.

Colonoscopy 

A colonoscopy is a procedure used to examine the large intestine (colon) and rectum for abnormalities. This test is commonly used to screen for colorectal cancer, polyps, inflammatory bowel disease , and diverticulosis. Colonoscopy is essential for patients over the age of 50 or those with a family history of colon cancer, as it can help detect early signs of cancer or other serious digestive issues. If necessary, the doctor can perform treatments during the colonoscopy, such as removing polyps, which could otherwise develop into cancer.

Sigmoidoscopy

A sigmoidoscopy is similar to a colonoscopy but focuses on examining only the sigmoid colon and the rectum. This test is often used to investigate symptoms like abdominal pain, rectal bleeding, or changes in bowel habits. It is also commonly used for screening for colon cancer or evaluating conditions like inflammatory bowel disease. While sigmoidoscopy does not look at the entire colon, it can still detect issues in the lower colon.

Proctoscopy

Proctoscopy is used to examine the rectum and anal canal for conditions such as hemorrhoids, anal fissures, fistulas, or rectal tumors. If a patient has symptoms like rectal bleeding, pain during bowel movements, or itching around the anus, a proctoscopy can help identify the cause. 

Biopsy & Cytology

Fine Needle Aspiration Cytology (FNAC) 

This is a minimally invasive procedure where a thin, hollow needle is used to extract a small sample of tissue or fluid from a suspicious mass. It is primarily used to diagnose lumps in areas like the breast, thyroid, lymph nodes, or liver. The main advantage this test is its ability to differentiate between benign and malignant lesions, helping guide further treatment decisions. If the result indicates cancer or infection, it assists in determining whether surgery or additional therapies are necessary.

Core Needle Biopsy

This procedure is particularly useful when a more substantial sample is required for a definitive diagnosis. It is commonly used for diagnosing cancers or other significant tissue conditions in the breast, liver, kidney, or prostate. The core biopsy offers more detailed information about the tissue's structure, helping doctors decide the next steps for treatment. Like FNAC, it helps determine whether surgery is needed and the type of treatment that will follow.

Excisional Biopsy

This procedure is helpful for diagnosing larger and easily accessible masses. It is often performed on lumps or tumors in the skin, breast, or lymph nodes. Excisional biopsies are valuable not only for diagnosis but also for treatment, as the mass is often removed entirely. In some cases, this may resolve the issue if the tumor is benign. For malignant tumors, excisional biopsy helps surgeons plan for additional treatments like radiation or chemotherapy.

Incisional Biopsy

This method is used when the tumor is too large or located in a difficult-to-access locations for complete removal. It is usually performed on deep tumors or those in critical areas like the abdomen or lungs. Although it doesn't provide a full removal, it offers enough tissue to determine whether the tumor is cancerous or benign. The findings from this biopsy help in planning further treatment.

Specialized Gastrointestinal Tests

Endoscopic Retrograde Cholangiopancreatography (ERCP) 

ERCP is a diagnostic and therapeutic procedure used to examine the bile ducts, pancreatic ducts, and gallbladder. It involves the insertion of an endoscope through the mouth into the duodenum, where a contrast dye is injected into the bile and pancreatic ducts, and X-rays are taken to visualize the ducts.

ERCP is commonly used to diagnose and treat conditions like bile duct obstruction, gallstones, pancreatic ductal strictures, and tumors in the bile ducts or pancreas. It is particularly valuable in general surgery for detecting and managing conditions that affect the biliary system, such as cholangiocarcinoma (bile duct cancer), pancreatitis, and cholecystitis (inflammation of the gallbladder).

Magnetic Resonance Cholangiopancreatography (MRCP) 

MRCP is an imaging technique that uses magnetic resonance imaging (MRI) to obtain detailed images of the bile and pancreatic ducts. MRCP is used to diagnose conditions like bile duct obstructions, pancreatitis, cysts in the pancreas, or bile duct stones. It provides high-quality images that help surgeons identify blockages, stenosis, or abnormalities in the bile and pancreatic ducts, aiding in the planning of further treatment or surgical procedures.

Esophageal Manometry

Esophageal Manometry is a diagnostic test used to evaluate the function of the esophagus and the lower esophageal sphincter (LES). During this procedure, a small catheter is inserted through the nose or mouth into the esophagus, where it measures the pressure and movement of the esophageal muscles. The test helps diagnose conditions such as achalasia, GERD, and esophageal motility disorders, which affect the ability of the esophagus to move food and liquid effectively. In general surgery, esophageal manometry is crucial for planning surgeries like fundoplication or esophagectomy, as it provides vital information about the muscle function of the esophagus and the LES.

Anorectal Manometry

Anorectal manometry is a test used to measure the function of the anus and rectum, including the strength and coordination of the muscles involved in bowel movements. A catheter with a balloon is inserted into the rectum, and it records pressures and reflexes that are essential for normal bowel function. Anorectal manometry is commonly used to diagnose conditions like constipation, fecal incontinence, and Hirschsprung's disease, which affect the lower gastrointestinal tract. This test helps general surgeons assess the function of the anorectal region and can be particularly useful in planning surgical treatments for conditions like rectal prolapse or in cases requiring sphincter repair.

24-hour pH Monitoring

This test is used to measure acid reflux in the esophagus over a 24-hour period. A small sensor is placed in the esophagus to record the pH level, determining the frequency and duration of acid reflux episodes. This test is useful for diagnosing GERD when symptoms like heartburn, regurgitation, and chest pain persist despite treatment.

Gastric Emptying Study

Gastric Emptying Study is used to evaluate the rate at which food leaves the stomach and enters the small intestine. This study helps diagnose conditions like gastroparesis, where the stomach empties too slowly, leading to symptoms such as nausea, vomiting, and bloating. It can also be used to evaluate the effectiveness of treatments or surgeries aimed at improving gastric motility. In general surgery, this study helps in guiding the management of gastrointestinal motility disorders and provides information regarding surgical interventions.

Barium studies 

Barium Studies involve the use of a contrast material (barium) that is ingested or introduced into the digestive system to provide detailed X-ray images of the gastrointestinal tract. Barium swallow, barium meal, and barium enema are common types of these studies used to diagnose problems in the esophagus, stomach, small intestine, and large intestine. Barium studies are often used to diagnose conditions such as esophageal strictures, ulcers, tumors, diverticulosis, or blockages in the intestines. These studies provide essential information to surgeons regarding the location and nature of abnormalities in the GI tract, assisting in planning treatments such as surgery, endoscopy, or other interventions.

Breast & Thyroid Diagnostic Tests

Mammography

This is a diagnostic imaging technique that used to examine the breast tissue. It is primarily used to screen for breast cancer, detect lumps, and identify abnormal growths in the breast. Mammography is essential for early detection of breast cancer, particularly in women with no apparent symptoms, allowing for prompt intervention. Mammography is a vital tool in the diagnosis and treatment of breast-related disorders, providing surgeons with valuable information to assess if a biopsy or surgical excision of suspicious masses is required. 

Breast Ultrasound

Breast ultrasound is used in conjunction with mammography to evaluate dense breast tissue or to investigate areas where mammograms might be unclear. Breast ultrasound is particularly useful for differentiating between solid masses (which may indicate tumors) and cysts (which are often benign). It helps to guide the biopsy of abnormal breast lesions and assess the nature of any detected abnormalities.

Thyroid Function Tests (TFT)

These are a series of blood tests used to evaluate the function of the thyroid gland, which regulates metabolism through hormones like thyroxine (T4) and triiodothyronine (T3). TFT measures the levels of thyroid hormones and thyroid-stimulating hormone (TSH), helping to diagnose conditions like hypothyroidism (underactive thyroid), hyperthyroidism (overactive thyroid), and thyroiditis. Proper thyroid function is critical for surgical planning, as abnormal levels can impact healing and recovery.

Thyroid Scan

A thyroid scan is a nuclear medicine diagnostic that uses a small quantity of radioactive iodine or technetium to evaluate the size, shape, and function of the thyroid gland. This test is used to identify cancer, evaluate thyroid nodules, and diagnose hyperthyroidism and Graves' disease. It is very beneficial for detecting thyroid cancer or functioning abnormalities, as well as directing decisions about thyroidectomy or other diagnostic treatments.

Vascular Diagnostic Tests

Peripheral Doppler Study

A peripheral doppler study is used to assess blood flow in the arteries and veins of the arms and legs. It uses ultrasound waves to detect the speed and direction of blood flow, helping identify conditions such as peripheral artery disease (PAD), blood clots, and venous insufficiency. This is useful for assessing vascular problems and detecting the severity of arterial blockages or venous reflux. This plays an important role in surgical planning, particularly in cases of leg ulcers, gangrene, and diabetic foot complications.

Ankle-Brachial Index (ABI) 

This is a simple, non-invasive test that compares blood pressure measured at the ankle with that in the arm. It is performed using a blood pressure cuff and helps assess blood flow in the lower limbs. ABI is commonly used to detect peripheral artery disease (PAD), a condition caused by the narrowing of the leg arteries, leading to reduced circulation. It helps evaluate the severity of the disease and supports decisions about further management, including procedures such as angioplasty, stenting, or bypass surgery.

CT Angiography 

CT angiography (CTA) is an advanced imaging technique that uses a contrast dye injected into the blood vessels and computed tomography (CT) scanning to create detailed images of the blood vessels. It is used to evaluate the condition of arteries and veins throughout the body, including the brain, heart, and peripheral vessels. CTA is particularly valuable in diagnosing vascular conditions such as aneurysms, arterial blockages, and stenosis. CT angiography is also used to plan surgeries involving vascular repair, stenting, or bypass procedures. 

Cardiac & Pre-operative Evaluation

Electrocardiogram (ECG) 

An electrocardiogram is a quick, painless, non-invasive test that records the heart's electrical activity using electrodes placed on the skin. It is used to detect a wide range of cardiac conditions, such as arrhythmias, heart attacks, and abnormal heart rhythms. An ECG is frequently conducted as part of the preoperative examination to confirm that the heart is functioning adequately before surgery, particularly in individuals with a history of cardiovascular conditions. 

2D Echocardiography 

2D echo is a non-invasive, painless ultrasound test that uses ultrasound to visualise the structure and function of the heart to detect heart disease, pumping issues, and defects. It is useful for assessing cardiac fitness before surgery and identifying conditions like heart failure or valvular disease that may influence anesthesia and surgical planning.

Chest X-ray 

Chest X-ray is a rapid and widely used imaging procedure that employs radiation to make an image of the chest, which includes the heart, lungs, airways, blood vessels, and bones. It can detect lung infections, pneumonia, heart failure, malignancies, and collapsed lungs. In general surgery, a chest X-ray is an essential part of pre-operative assessment, especially for surgeries involving the chest, abdomen, or upper digestive system. It can also detect underlying lung conditions or cardiovascular issues that may complicate surgery or anesthesia. 

Trauma & Emergency Diagnostics

Focused Assessment with Sonography for Trauma (FAST Ultrasound) 

FAST Ultrasound is a quick bedside ultrasound treatment used to evaluate trauma patients for internal bleeding or organ damage. Ultrasound is used to scan important locations such as the abdomen, chest, and pelvis for fluid collection that may indicate internal bleeding. The FAST ultrasound is useful in emergency situations because it can immediately detect free fluid in the peritoneal cavity, pleural space, or pericardium, allowing for immediate management.

CT Trauma Scan

CT Trauma Scan (also known as a Trauma CT or Whole-Body CT) is a highly detailed imaging technique that uses X-rays and computer technology to create cross-sectional images of the body. This scan is highly efficient for assessing trauma patients with suspected fractures, internal bleeding, or organ damage. This scan gives surgeons a comprehensive image of the entire body, allowing them to examine the severity and location of injuries to vital organs, bones, blood arteries, and soft tissues. It is also employed in emergency settings, especially when numerous organs are implicated or the injury is severe.

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