CARDIAC CHANGES IN PREGNANCY Flashcards by Samii Borno

Q

HR increased or decreased?

A

Increased

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Q

HR % change

A

~17% (15-20bpm) Increase

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Q

Onset of HR change

A

5w

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Q

Peak HR change

A

32w

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Q

SV increased or decreased?

A

Increased

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Q

SV % change

A

20-30% increased

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Q

Onset of SV change

A

By 8w

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Q

Peak SV change

A

30w

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Q

CO increased or decreased?

A

Increased

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Q

CO % change

A

~50% (7L compared to 5L), could be up to 70% in twins

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Q

CO peak during regular gestating

A

25-30w

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Q

CO peak during labor

A

2nd stage with contractions (7-10.5L/min)

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Q

CO peak PP

A

10-30min PP

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Q

When does CO return to pre-labor baseline?

A

1hr (~7L)

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Q

When does CO return to pre-conceptual baseline?

A

~2-4w PP

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Q

SVR increased or decreased?

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A

Decreased

Q

SVR % change

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A

21-26%

Q

SVR peak

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A

Nadir is mid-pregnancy, with gradual increased, though still below baseline

Q

BP/MAP increased or decreased?

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A

Decreased

Q

BP/MAP change?

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A

3-10mmHg

Q

Which changes more, systolic or diastolic?

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A

Diastolic

Q

Onset of BP/MAP change?

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A

~8w

Q

Venous pressure change in UE?

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A

Unchanged

Q

Venous pressure change in LE?

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A

Increased