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Hepatitis D virus (HDV)

An enveloped RNA virus acquired from blood or sexual transmission. It infects only those…

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Hepatitis E virus (HEV)

A non-enveloped, single-stranded RNA virus transmitted through the fecal-oral route; causes acute but not…

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Hepatomegaly

Abnormal enlargement of the liver often due to disease or infection.

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Hering-Breuer deflation reflex

A reflex mediated by a slowly adapting receptor known as a pulmonary stretch receptor.…

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Herpes zoster

A disease caused by Varicella-Zoster virus, the same virus that causes chickenpox. The virus…

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Hertz (Hz)

Unit of frequency; 1 Hz equals one cycle per second.

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HFJV

High-Frequency Jet Ventilation

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HFO

High-Frequency Oscillation

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HFOV

High-Frequency Oscillatory Ventilation.

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HFPPV

High-Frequency Positive-Pressure Ventilation

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HFPV

High-Frequency Percussive Ventilation

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