Hepatitis Flashcards
What key historical factors should be explored in a patient presenting with hepatitis symptoms?
History of new drug use, alcohol consumption, blood or body fluid exposure, and viral hepatitis exposure.
Example sentence: A patient presenting with jaundice should be asked about recent travel and potential exposure to contaminated water sources.
How can you differentiate between obstructive and hepatocellular causes of liver enzyme abnormalities?
Obstructive causes often present with elevated alkaline phosphatase (ALP) and gamma-glutamyl transferase (GGT), while hepatocellular causes show elevated alanine aminotransferase (ALT) and aspartate aminotransferase (AST).
Additional information: Elevated ALP and GGT can suggest bile duct obstruction or cholestasis, while elevated ALT and AST are indicative of liver cell damage.
What is the next step if an obstructive pattern is identified in liver enzyme tests?
Arrange for imaging to assess the cause of obstruction, such as ultrasound or CT scan.
Example sentence: If ALP and GGT are elevated, an ultrasound can help identify gallstones or other biliary obstructions.
What should be done if imaging reveals an obstructive cause of liver disease?
Refer the patient for more definitive management, which may include surgical or interventional procedures.
Example sentence: A patient with a confirmed bile duct stone may need endoscopic retrograde cholangiopancreatography (ERCP) for removal.
How do you assess the infectiousness of a patient with Hepatitis B or C?
Evaluate viral load and specific serological markers (e.g., HBeAg for Hepatitis B, HCV RNA for Hepatitis C).
Additional information: High viral loads and positive serological markers indicate active viral replication and increased infectivity.
What is an essential step in managing patients who test positive for Hepatitis C antibodies?
Determine if they are chronically infected by testing for HCV RNA.
Example sentence: Patients who are HCV antibody positive should undergo confirmatory HCV RNA testing to assess the need for treatment.
What should be done for patients with chronic Hepatitis C?
Refer them for further assessment and potential antiviral treatment.
Additional information: Antiviral treatment options may include direct-acting antivirals (DAAs) to achieve sustained virologic response (SVR).
What harm reduction strategies should be discussed with patients at risk for Hepatitis B and C?
Avoid sharing needles, ensure safe sex practices, and reduce exposure to blood and body fluids.
Example sentence: Patients who inject drugs should be counseled on safe needle practices to prevent transmission of bloodborne infections.
What vaccinations are recommended for patients at risk for Hepatitis B and C?
Vaccinate against Hepatitis A and Hepatitis B.
Additional information: Hepatitis A and B vaccines are safe and effective preventive measures for at-risk populations.
When should post-exposure prophylaxis be offered?
Offer post-exposure prophylaxis if the patient has been exposed or possibly exposed to Hepatitis A or B.
Example sentence: Healthcare workers exposed to potentially infectious blood should receive post-exposure prophylaxis to prevent viral transmission.
In patients with chronic viral hepatitis, particularly Hepatitis C, what complications should be monitored for?
Monitor for complications such as cirrhosis and hepatocellular carcinoma.
Additional information: Regular surveillance for liver cancer and liver cirrhosis is essential in patients with chronic viral hepatitis.
What liver enzyme pattern is typically seen in hepatocellular injury?
Elevated alanine aminotransferase (ALT) and aspartate aminotransferase (AST), with relatively normal alkaline phosphatase (ALP) and gamma-glutamyl transferase (GGT).
Additional information: ALT and AST are markers of liver cell damage, while ALP and GGT are indicators of biliary function.
What liver enzyme pattern suggests an obstructive cause of liver disease?
Elevated alkaline phosphatase (ALP) and gamma-glutamyl transferase (GGT), with relatively normal alanine aminotransferase (ALT) and aspartate aminotransferase (AST).
Additional information: Obstructive liver diseases like cholestasis can lead to ALP and GGT elevation.
If a patient has elevated ALT and AST but normal ALP and GGT, what is the likely etiology of liver enzyme abnormalities?
The pattern is indicative of hepatocellular injury.
Additional information: Hepatocellular injury can result from conditions like viral hepatitis, drug toxicity, or fatty liver disease.
Which additional test might help differentiate between hepatocellular and obstructive causes when liver enzyme patterns are unclear?
Imaging studies such as ultrasound or CT scan can help identify structural abnormalities and biliary obstruction.
Example sentence: In cases of unclear liver enzyme patterns, imaging can reveal gallstones or liver tumors causing the abnormal results.
A patient presents with elevated ALP and GGT, but normal ALT and AST. What should be suspected?
The pattern suggests an obstructive cause, such as biliary obstruction or cholestasis.
Additional information: Biliary obstruction can be caused by gallstones, tumors, or strictures in the bile ducts.
What is the significance of a markedly elevated ALT level compared to AST in diagnosing liver conditions?
A markedly elevated ALT compared to AST is often associated with acute hepatocellular damage, such as viral hepatitis or drug-induced liver injury.
Additional information: The ALT/AST ratio can help differentiate between different types of liver diseases and guide further evaluation.
In the context of elevated ALP and GGT with normal ALT and AST, which conditions should be considered?
Consider conditions like cholestasis, biliary obstruction, or primary biliary cholangitis.
Additional information: Primary biliary cholangitis is an autoimmune liver disease that can present with elevated ALP and GGT levels.
If a patient with elevated liver enzymes has a predominance of AST over ALT, what liver pathology might this indicate?
This pattern can suggest chronic liver disease or cirrhosis, particularly if the AST is significantly higher than ALT.
Example sentence: A patient with alcoholic cirrhosis may have an AST/ALT ratio greater than 2:1.
What is the role of gamma-glutamyl transferase (GGT) in differentiating between liver disease causes?
Elevated GGT is often associated with biliary obstruction or cholestasis and helps distinguish obstructive liver disease from hepatocellular injury.
Additional information: GGT levels can be elevated in conditions like alcoholic liver disease and drug-induced liver injury.
How can the ratio of AST to ALT aid in the diagnosis of liver pathology?
An AST to ALT ratio greater than 2:1 is often seen in alcoholic liver disease and cirrhosis, while a ratio closer to 1:1 is more common in acute hepatitis.
Additional information: The AST/ALT ratio can provide insights into the underlying liver disease and guide further diagnostic workup.
