Hypoxia Due to Decreased FiO2 Overview

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What is a common feature of methemoglobinemia?

Secondary erythrocytosis (correct)

Clubbing

Onset at birth or early childhood

Cyanotic spells and squatting

At what age does central cyanosis typically onset in cases of pulmonary diseases?

Sudden onset at any age

In infancy

Late childhood (correct)

At birth

Which condition presents with cardiorespiratory symptoms absent, but may have neurological signs in type II congenital cases?

Pulmonary AV malformation (PAVMs)

Pulmonary diseases

Methemoglobinemia (correct)

Cyanotic heart defect

What is a distinctive feature of pulmonary AV malformation (PAVMs) on auscultation?

Continuous bruit in large malformations Signup and view all the answers

Which diagnostic method shows abnormal heart findings in cyanotic heart defects?

Echocardiography Signup and view all the answers

What is a common characteristic of central cyanosis due to pulmonary AV malformation (PAVMs)?

Low SpO2 and normal pO2 levels Signup and view all the answers

Which condition is associated with the absence of secondary erythrocytosis?

Pulmonary diseases Signup and view all the answers

What feature is typically observed on X-ray in cases of methemoglobinemia?

Opacity in normal lung field Signup and view all the answers

Which condition is characterized by the absence of cardiorespiratory symptoms but the presence of marked secondary erythrocytosis?

Central cyanosis due to methemoglobinemia Signup and view all the answers

In which condition would contrast echocardiography typically show normal findings initially, but diagnostic features may appear in the left-sided chambers after 3 to 4 cardiac cycles?

Pulmonary AV malformation (PAVMs) Signup and view all the answers

Hypoxia Due to Decreased FiO2 Overview

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Questions and Answers

What is a common feature of methemoglobinemia?

At what age does central cyanosis typically onset in cases of pulmonary diseases?

Which condition presents with cardiorespiratory symptoms absent, but may have neurological signs in type II congenital cases?

What is a distinctive feature of pulmonary AV malformation (PAVMs) on auscultation?

Which diagnostic method shows abnormal heart findings in cyanotic heart defects?

What is a common characteristic of central cyanosis due to pulmonary AV malformation (PAVMs)?

Which condition is associated with the absence of secondary erythrocytosis?

What feature is typically observed on X-ray in cases of methemoglobinemia?

Which condition is characterized by the absence of cardiorespiratory symptoms but the presence of marked secondary erythrocytosis?

In which condition would contrast echocardiography typically show normal findings initially, but diagnostic features may appear in the left-sided chambers after 3 to 4 cardiac cycles?

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