Rita Ryeeta

Medical Note: Hepatitis B Virus (HBV)

Definition:
Hepatitis B Virus (HBV) is a DNA virus that infects the liver, leading to acute or chronic hepatitis. It is a major global health concern and can progress to cirrhosis, liver failure, or hepatocellular carcinoma (HCC).

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Mode of Transmission

Blood and body fluids

Unprotected sexual in*******se

Mother-to-child transmission (vertical transmission at birth)

Sharing needles, syringes, or sharp objects

Unsafe blood transfusions

Close household contact with infected persons (through open cuts)

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Clinical Features

Acute HBV

May be asymptomatic

Fever, malaise, fatigue

Anorexia, nausea, vomiting

Right upper quadrant pain

Jaundice, dark urine, pale stool

Elevated liver enzymes (ALT, AST)

Chronic HBV

Often asymptomatic for years

Persistent elevation of liver enzymes

Hepatomegaly

Progression to cirrhosis or hepatocellular carcinoma

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Diagnosis

HBsAg – indicates active infection

HBeAg – high infectivity

Anti-HBs – immunity

Anti-HBc IgM/IgG – differentiates acute vs chronic infection

HBV DNA – viral load

Liver function tests (ALT, AST)

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Complications

Chronic hepatitis

Liver cirrhosis

Liver failure

Hepatocellular carcinoma (HCC)

Fulminant hepatic failure (rare)

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Management

Acute HBV

Supportive treatment (hydration, rest)

Monitor ALT/AST and bilirubin

Most patients recover spontaneously

Chronic HBV

Antiviral therapy:

Tenofovir

Entecavir

Pegylated interferon-alpha

Regular monitoring of liver enzymes and viral load

Ultrasound screening for HCC every 6 months

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Prevention

HBV vaccination (highly effective)

Safe sexual practices

Avoid sharing needles or sharp objects

Screen pregnant women and provide HBV immunoglobulin + vaccine to newborns

Safe blood transfusion practices

Title

Bell’s Palsy
A Comprehensive Guide to Understanding Facial Nerve Paralysis

What Is Bell’s Palsy?

Bell’s palsy is characterized by a sudden onset of weakness or paralysis of one side of the face, resulting from inflammation of the facial nerve (CN VII).

Causes

Although the exact causes are unknown, Bell’s palsy has been strongly linked to the following factors:
Herpes simplex virus
Pregnancy
Diabetes
Hypertension
Recent viral infections

Symptoms

The primary symptoms of Bell’s palsy include:
Facial drooping on one side
Inability to close one eye
Drooling and difficulty smiling
Loss of taste on the front of the tongue
Sound sensitivity on the affected side
Forehead involvement, indicative of a lower motor neuron lesion

Diagnosis

Diagnosis is primarily clinical, with no special tests required unless symptoms are unusual.

Prognosis

The prognosis for Bell’s palsy is generally favorable, with most individuals experiencing full recovery within 3-6 months. However, recovery may be slower in cases where the condition is severe at onset.

Positions in Nursing... Extremely crucial to understand.