Deck 36: Transient Tachypnea of the Newborn

Question 1

The causes of TTN include:
1) mother's diagnosis of cystic fibrosis.
2) infant's hypoxemia.
3) mother's hypoxemia.
4) infant's inadequate inspiratory effort.

A)1, 3
B)2, 4
C)2, 3, 4
D)1, 2, 3

Answer 1

2, 4

Question 2

The major pathologic and structural changes associated with TTN include:
1) decreased removal of fluid by pulmonary lymphatics.
2) air trapping.
3) pleural effusion.
4) atelectasis.

A)1, 2
B)3, 4
C)1, 2, 3
D)2, 3, 4

Answer 2

1, 2

Question 3

Which of the following radiologic findings would not be expected in a 12-hour-old neonate with TTN?

A) Air bronchograms
B) Fluid in the interlobular fissures
C) Elevated diaphragms
D) Prominent perihilar streaking

Answer 3

Elevated diaphragms

Question 4

What respiratory rate would be expected during the physical examination of a patient with TTN?

A) 60 to 100 breaths/min
B) 40 to 60 breaths/min
C) 20 to 40 breaths/min
D) Less than 20 breaths/min

Question 5

In reviewing the chart of a neonate who has developed TTN, what is a likely finding related to the Apgar score?

A) The 1- and 5-minute scores are good.
B) The 1-minute score is good and 5-minute score is bad.
C) The 1-minute score is bad and 5-minute score is good.
D) Both scores are bad.

Question 6

On a chest radiograph, starbursts are indicative of:

A) bacterial pneumonia.
B) carinal carcinoma.
C) pulmonary vascular congestion.
D) foreign body aspiration.

Question 7

How soon will TTN begin to resolve after birth?

A) 4 to 6 hours after birth
B) 12 to 24 hours after birth
C) 48 to 72 hours after birth
D) 72 to 96 hours after birth

Question 8

Initially, a mild case of TTN manifests itself clinically as a(n) _____ disorder.

A) restrictive pulmonary
B) obstructive pulmonary
C) equally restrictive and obstructive
D) initially obstructive and then a progressively restrictive

Question 9

Which of the following clinical manifestations are associated with the more negative intrapleural pressures needed during inspiration?
1) Thick, tenacious secretions
2) Intercostal retractions
3) Nasal flaring
4) Mediastinal shift

A)1, 4
B)2, 3
C)2, 3, 4
D)1, 2, 4

Question 10

At what gestational age is TTN most common?

A) 26 to 28 weeks' gestational age
B) 28 to 30 weeks' gestational age
C) 34 to 36 weeks' gestational age
D) 38 to 40 weeks' gestational age

Question 11

Risk factors for the development of TTN include:
1) maternal diabetes.
2) male gender.
3) maternal bleeding.
4) breech delivery.

A)1, 3
B)2, 4
C)1, 3, 4
D)1, 2, 3

Question 12

An infant with a mild case of TTN will show which of the following arterial blood gas values?
1) Increased pH
2) Decreased pH
3) Low PaO₂
4) Low PaCO₂

A)1, 4
B)3, 4
C)2, 3
D)1, 3, 4

Question 13

Which of the following is not typically performed in the general management of a patient with TTN?

A) Oxygen therapy administration
B) Administration of diuretics
C) Proper stabilization
D) Ruling out other serious conditions

Question 14

What are the radiologic findings anticipated on a chest radiograph taken 2 hours after delivery in a newborn suspected of having TTN?

A) Normal lung fields
B) Hyperlucency
C) Flattened diaphragms
D) Bulging intercostal spaces

Question 15

Which of the following oxygenation indices would be elevated in TTN?

A) Arterial-venous oxygen content difference
B) Oxygen consumption
C) Mixed venous oxygen saturation
D) Pulmonary shunt fraction

Question 16

Initially, TTN will have a clinical presentation similar to:

A) the early stage of respiratory distress syndrome (RDS).
B) the late stage of respiratory distress syndrome (RDS).
C) bronchial pneumonia.
D) meconium aspiration syndrome (MAS).

Question 17

Which of the following breathing patterns are associated with TTN?
1) Normal rate
2) Rapid rate
3) Higher than normal tidal volume
4) Shallow tidal volume

A)1, 3
B)2, 3
C)1, 4
D)2, 4