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Análisis de la evaluación de confiabilidad

CAPÍTULO 3: Cálculo de la confiabilidad de un sistema eléctrico

3.3 Análisis de la evaluación de confiabilidad

7–1.

A patient rep rts that the irst day her last menstrual peri d was September 19th. Based n Naegele rule, her due date is whi h the ll wing?

a.

July 10th

b.

June 14th

c.

June 26th

d.

De ember 12th

7–2.

Pregnan y an be divided int three units r trimesters ea h lasting h w many weeks?

a.

12

b.

13

c.

15

d.

16

7–3.

At the beginning whi h week ll wing ertilizati n is a n eptus termed an embry ?

a.

1st week

b.

2nd week

c.

3rd week

d.

4th week

7–4.

H w many weeks d es the embry ni peri d last?

a.

4

b.

8

c.

10

d.

12

7–5.

During whi h week devel pment is the primitive heart partiti ned?

a.

4th week

b.

6th week

c.

8th week

d.

10th week

7–6.

At 10 weeks’ gestati n based n the last menstrual peri d, all EXCEPT whi h the ll wing are true?

a.

Arms bend at the elb ws.

b.

Cr wn-rump length is 7 m.

c.

he upper lip is mplete.

d.

Heart is mpletely rmed.

7–7.

C rresp nding with midbrain maturati n, when d eye m vements begin?

a.

10–12 weeks

b.

12–14 weeks

c.

14–16 weeks

d.

16–18 weeks

7–8.

At 28 weeks’ gestati n, what is the han e survival with ut physi al r neur l gi al impairment?

a.

10%

b.

25%

c.

50%

d.

90%

7–9.

All EXCEPT whi h the ll wing pass thr ugh pla ental tissue by simple di usi n?

a.

IgG

b.

Water

c.

Oxygen

d.

Anestheti gases

7–10.

What is the average xygen saturati n intervill us spa e bl d?

a.

10–20%

b.

30–35%

c.

65–75%

d.

90–95%

7–11.

Whi h the ll wing statements regarding the trans er arb n di xide a r ss the pla enta is true?

a.

Carb n di xide traverses the h ri ni villus m re sl wly than xygen.

b.

Fetal bl d has m re a inity r arb n di xide than maternal bl d.

c.

he partial pressure arb n di xide in the umbili al arteries averages 50 mm Hg.

d.

Mild maternal hyp ventilati n results in a all in Pco2 levels, av ring a trans er arb n

di xide r m the etal mpartment t maternal bl d.

Embryogenesis a nd Feta l Morphologica l Development CH A P T E R 7

43

7–12.

Whi h the ll wing is und in higher n entrati ns in the m ther than the etus?

a.

Ir n

b.

Zin

c.

As rbi a id

d.

Human pla ental la t gen

7–13.

Whi h the ll wing maternal immun gl bulins (Ig) rea h the etus?

a.

Only IgA

b.

Only IgG

c.

Only IgM

d.

IgA and IgG

7–14.

H w is i dide transp rted a r ss the pla enta?

a.

End yt sis

b.

Simple di usi n

c.

Carrier-mediated pr ess

d.

I dide d es n t r ss the pla enta

7–15.

In early pregnan y, amni ni luid is mp sed whi h the ll wing?

a.

Fetal urine

b.

Fetal pulm nary luid

c.

Ultra iltrate maternal plasma

d.

Extra ellular luid that di uses thr ugh etal skin

7–16.

Amni ni luid v lume peaks at what gestati nal age?

a.

24 weeks

b.

28 weeks

c.

34 weeks

d.

38 weeks

7–17.

Whi h the ll wing statements regarding the etal ardi vas ular system is true?

a.

Fetal heart hambers w rk in series.

b.

he p rtal sinus is the maj r bran h the umbili al vein.

c.

Oxygen is delivered r m the pla enta by the umbili al artery.

d.

he du tus ven sus traverses the liver t enter the in eri r vena ava dire tly.

7–18.

A ter birth, the intraabd minal remnants the umbili al vein rm whi h the ll wing?

a.

Ligamentum teres

b.

Ligamentum ven sum

c.

Ligament reitz

d.

Umbili al ligaments

7–19.

he rder in whi h hem p iesis is seen in the embry / etus r m earliest t latest is whi h the ll wing?

a.

Liver, y lk sa , b ne marr w

b.

Y lk sa , liver, b ne marr w

c.

B ne marr w, liver, y lk sa

d.

Y lk sa , b ne marr w, liver

7–20.

Whi h the ll wing has the l west erythr yte mean ell v lume (MCV)?

a.

Embry

b.

erm etus

c.

Aneupl id etus

d.

he MCV remains the same thr ugh ut gestati n

7–21.

A etus weighs 3000 g at term. What is the expe ted et pla ental bl d v lume?

a.

125 mL

b.

250 mL

c.

375 mL

d.

500 mL

7–22.

Where is etal hem gl bin F pr du ed?

a.

Liver

b.

Y lk sa

c.

B ne marr w

d.

Y lk sa and liver

7–23.

In ants attain adult levels IgM at what age?

a.

3 m nths

b.

6 m nths

c.

9 m nths

Pla centa tion, Embryogenesis, a nd Feta l Development SE C T I O N 3

44

7–24.

Whi h the ll wing sequen es rre tly identi ies the b nes labeled in the image?

B B

C

A A

M dif ed with permissi n r m Cunningham FG, Leven KJ, Bl m SL, et al (eds): Embry genesis and Fetal M rph l gi al Devel pment. In Williams Obstetri s, 24th ed. New Y rk, M Graw-Hill, 2014, Figure 7-11.

a.

A is the r ntal b ne, B is the parietal b ne, C is the ipital b ne.

b.

A is the parietal b ne, B is the ipital b ne, C is the r ntal b ne.

c.

A is the temp ral b ne, B is the r ntal b ne, C is the ipital b ne.

d.

A is the r ntal b ne, B is the temp ral b ne, C is the parietal b ne.

7–25.

In the igure Questi n 7-24, the suture b rdered by the b nes labeled A and B is whi h the

ll wing?

a.

C r nal suture

b.

Lambd id suture

c.

Fr ntal suture

d.

Sagittal suture

7–26.

Whi h the ll wing sequen es rre tly identi ies the dimensi ns labeled in this image?

A C

B

M dif ed with permissi n r m Cunningham FG, Leven KJ, Bl m SL, et al (eds): Fetal Gr wth and Devel pment. In Williams Obstetri s, 22nd ed. New Y rk, M Graw-Hill, 2005, Figure 4-9.

a.

A is sub ipit bregmati , B is ipit r ntal, C is ipit mental.

b.

A is ipit r ntal, B is sub ipit bregmati , C is ipit mental.

c.

A is ipit mental, B is ipit r ntal, C is sub ipit bregmati .

d.

A is ipit r ntal, B is ipit mental, C is sub ipit bregmati .

7–27.

Whi h the statements regarding etal swall wing is true?

a.

Swall wing begins at 20 weeks’ gestati n.

b.

erm etuses swall w between 200 and 760 mL per day.

c.

I swall wing is inhibited in late pregnan y, lig hydramni s will ur.

d.

Swall wing greatly a e ts amni ni luid v lume, parti ularly in early pregnan y.

7–28.

he limits etal viability are determined by whi h the ll wing pr esses?

a.

Pulm nary gr wth

b.

Kidney rmati n

c.

Hepati devel pment

d.

Fetal immun mpeten e

Embryogenesis a nd Feta l Morphologica l Development CH A P T E R 7

45

7–29.

A 25-year- ld G1P0 presents with rupture

membranes at 19 weeks. She subsequently delivers. On hist l gi al evaluati n the lungs the

n nviable etus, y u w uld expe t whi h the ll wing?

a.

Mature alve li

b.

N artilage devel pment

c.

Presen e terminal sa s

d.

N rmal br n hial bran hing

7–30.

Y u deliver an in ant with ambigu us genitalia. During examinati n, y u n te a small phallus that y u suspe t is lit ral hypertr phy. A ph t graph is pr vided bel w. Y u unsel the m ther and rder kary typing. he kary type is 46,XY. he m st likely diagn sis is whi h the ll wing?

Repr du ed with permissi n r m Cunningham FG, Leven KJ, Bl m SL, et al (eds): Fetal gr wth and devel pment. In Williams Obstetri s, 23rd ed. New Y rk, M Graw-Hill, Figure 4-20.

a.

rue hermaphr ditism

b.

Fetal ar matase de i ien y

c.

Male pseud hermaphr ditism

d.

C ngenital adrenal hyperplasia

7–31.

he hild bel w has a webbed ne k, streak g nads, and genital in antilism. Her m ther rep rts that when pregnant with her, her ultras und was

abn rmal, with luid lle ting n the ba k the hild’s ne k. he m st likely diagn sis is whi h the ll wing?

Repr du ed with permissi n r m Fuster V, Walsh RA, Harringt n RA (eds): Hurst’s T e Heart, 13th ed. New Y rk, M Graw-Hill, 2011, Figure 14-14.

a.

G nadal dysgenesis

b.

rue hermaphr ditism

c.

Rei enstein syndr me

Pla centa tion, Embryogenesis, a nd Feta l Development SE C T I O N 3

46

7–32.

A w man presents t lab r and delivery a ter having a vaginal birth at h me. She has had n prenatal are. A ter attending t her, y u examine the newb rn. A ph t graph is pr vided. Y u n te a hemis r tum am ng ther things. he likely diagn sis is whi h the ll wing?

Repr du ed with permissi n r m Cunningham FG, Leven KJ, Bl m SL, et al (eds): Fetal gr wth and devel pment. In Williams Obstetri s, 23rd ed. New Y rk, M Graw- Hill, Figure 4-21B.

a.

rue hermaphr ditism

b.

Fetal ar matase de i ien y

c.

Male pseud hermaphr ditism

d.

C ngenital adrenal hyperplasia

Embryogenesis a nd Feta l Morphologica l Development CH A P T E R 7

47

CHAPTER 7 ANSw ER KEy

Q uestion

number

a nswerLetter

Pa ge cited Hea der cited

7–1

c

p. 1 2 7 Gesta tiona l Age Va riously Defined

7–2

b

p. 1 2 7 Gesta tiona l Age Va riously Defined

7–3

c

p. 1 2 8 Embryonic Period

7–4

c

p. 1 2 8 Embryonic Period

7–5

a

p. 1 2 8 Embryonic Period

7–6

b

p. 1 2 8 Embryonic Period

7–7

d

p. 1 2 9 1 6 Gesta tiona l W eeks

7–8

d

p. 1 2 9 2 8 Gesta tiona l W eeks

7–9

a

p. 1 3 2 Mecha nisms of Tra nsfer

7–10

c

p. 1 3 2 Tra nsfer of O xygen a nd Ca rbon Dioxide

7–11

c

p. 1 3 2 Tra nsfer of O xygen a nd Ca rbon Dioxide

7–12

d

p. 1 3 3 Glucose a nd Feta l Growth

7–13

b

p. 1 3 4 Proteins

7–14

c

p. 1 3 4 Ions a nd Tra ce Meta ls

7–15

c

p. 1 3 5 Amnionic Fluid Forma tion

7–16

c

p. 1 3 5 Amnionic Fluid Forma tion

7–17

d

p. 1 3 5 Ca rdiova scula r System

7–18

a

p. 1 3 7 Circula tory Cha nges a t Birth

7–19

b

p. 1 3 7 Hemopoiesis

7–20

b

p. 1 3 7 Hemopoiesis

7–21

c

p. 1 3 7 Fetopla centa l Blood Volume

7–22

a

p. 1 3 7 Feta l Hemoglobin

7–23

c

p. 1 3 9 Immunoglobulin M a nd A

7–24

a

p. 1 3 9 Skull

7–25

a

p. 1 3 9 Skull

7–26

a

p. 1 3 9 Skull

7–27

b

p. 1 4 0 Ga strointestina l System

7–28

a

p. 1 4 2 Ana tomica l Ma tura tion

7–29

d

p. 1 4 2 Ana tomica l Ma tura tion

7–30

c

p. 1 4 8 Genita l Ambiguity of the N ewborn

7–31

a

p. 1 4 8 Genita l Ambiguity of the N ewborn

S e c t i o n 4

PRECONCEPTIONAL AND

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