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OB Exam 1
Preconception, nutrition, ovulation, L&D
45
Nursing
Undergraduate 4
09/04/2012

Additional Nursing Flashcards

 


 

Cards

Term
Which hormone triggers the "off switch" in the negative feedback loop of the H-P-O axis?
Definition
Progesterone
Term
The hypothalamus releases which hormone?
Definition
GnRH (gonad releasing hormone)
Term
Follicle-stimulating hormone and leutenizing hormone are released by which gland? 
Definition
Anterior pituitary gland
Term
The ovaries release what hormones?
Definition
Estrogen, progesterone
Term
Prostaglandins: what is the function of PGE? PGF?
Definition

PGE: Vasodilatory; smooth muscle relaxant

PGF: vasoconstrictive; smooth muscle contractor

Term
Which hormone stimulates the folloicle (which houses the egg) to grow and mature?
Definition
FSH (Follicle-stimulating hormone)
Term
This hormone converts the empty follicle into the corpus luteum and supports this structure (which in turn supports an early pregnancy until the placenta forms)
Definition
LH (Leutinizing Hormone)
Term

This stage covers the growth of the follicle from "primary" to "mature."  

A surge of ___  stimulates release of the egg

Definition

Follicular Phase (days 1-14)

 

Surge of LH (leutenizing hormone) causes egg release

Term
In the follicular phase, is estrogen or progesterone the dominant hormone?
Definition
Estrogen
Term
This stage of the ovarian cycle is from days 15-28, and involves conversion of the empty follicle into the ___________
Definition

Leuteal Phase

 

Corpus luteum

Term
In the luteal phase, is estrogen or progesterone the dominant hormone?
Definition
Progesterone
Term
During the menstrual cycle, what phase involves bleeding
Definition
Menstrual phase 
Term
In the uterine cycle, the proliferative phase is characterized by _____________ hormone dominance
Definition
Estrogen
Term
In the uterine cycle, the secretory phase is characterized by ______________ hormone dominance
Definition
Progesterone
Term
A drop in which hormone causes the ischemic phase?
Definition
Progesterone
Term

Progesterone ____ (on/off) = "baby hotel"

Progesterone ____ (on/off)= restart menstrual phase 

Definition

On = baby hotel

Off = restart menstrual phase

Term
If a menstrual cycle is 21 days, ovulation occus on what day?
Definition
Day 7
Term
Ovulation occus on which day for a 28 day cycle?
Definition
Day 14
Term
For a 35 day cycle, ovulation occurs on the ____ day
Definition
21st 
Term
For a 42 day cycle, ovulation occus on the ____ day
Definition
28th 
Term
Hormones of pregnancy include: 
Definition

hCG (human chorionic gonadotropin)

Estrogen

Progesterone

Relaxin

Prolactin

Oxytocin

Human Placental Lactogen (hPL)

Term
Which hormone is responsible for a + pregnancy test?
Definition
hCG
Term
This hormone "rescues" the corpus luteum cyst (CLC)
Definition
hCG
Term
This hormone is produced by the placenta, and responsible for + pregnancy tests
Definition
hCG
Term
Nausea is caused by which hormone?
Definition
hCG
Term

____________ is a hormone that:

- is produced by the placenta

- develops breast ducts

- develops blood vessels of the uterus

- responsible for hypercoagulability

- stimulates melanin

- changes in collagen

- decreases sensitivity to insulin

Definition
Estrogen
Term

___________ is a hormone that is:

- produced by CLC, then placenta

- develops glandular breast tissue

- increases respiratory rate

- relaes smooth muscle (blood vessels and GI tract, incl. gallbladder)

Definition
Progesterone
Term
Relaxin is a hormone with a function of
Definition
remodeling connective tissue
Term
______________ is produced by the posterior pituitary gland, and responsible for labor contractions and milk ejection
Definition
Oxytocin
Term
___________ is produced by the anterior pituitary, helps develop breasts for lactations in synergy with estrogen and progesterone, and stimulates lactogenesis.
Definition
Prolactin
Term
hPL is produced by ________-
Definition
the placenta
Term
___________ assists prolactin with lactogenesis, and is responsible for insulin resistance (increase in maternal blood sugars, protein synthesis, and lipolysis - allows available glucose for developing fetus).
Definition
hPL (hyman placental lactogen)
Term
Hensley's Rules
Definition

1. Include the partner

2. Don't assume gender of partner

Term
Physiological respiratory changes in pregnancy
Definition

Increased tidal volume

Increased O2 consumption (by 20%)

Increased respiratory rate

Elevated diaphragm (upward displacement)

Rib cage flare

Nasal stuffiness

Epistaxis

Respiratory alkalosis

 

Term
Physiologic changes of pregnancy: HEENT
Definition

Eyes change shape

Ptyalism

Bleeding Gums

Nose Bleeds

Feeling of fullness/stuffiness in ears, nose and sinuses

Term
Physiologic changes in pregnancy:
Skin and Hair 
Definition

linea nigra

spider nevi

acne vulgaris

Striae - 50-90%

Melasma (aka Cholasma)

Darkening areolae, vulva, axilla

Increased hair and nail growth (prolonged growth phase, less in resting phase)

palmar erythema

Term
What hormone is responsible for melasma (or chloasma)
Definition
Estrogen
Term
Normal physiologic changes in pregnancy:
Breasts 
Definition

enlarge - glandular hypertrophy

Tenderness and sensitivity

Nipple sensitivity

Vein prominence

Nipples become more erect

areolar changes - darkening, enlargement

Montgomery's tubercules

Colostrum - from 12 weeks

Term

Normal Physiologic changes of pregnancy:

GI

Definition

Displaced stomach/intestines

Decreased GI motility and emptyhing (gas, constipation)

Nausea and vomiting

Decreased gallbladder emptying *risk for stones

Progesterone causes "valve" between stomach and esophagus to "soften" - heartburn

Dilated vessels - hemorrhoids

Elevated alkaline phosophotase

Term

Which hormones soften the cardiac sphincter, predisposing the woman to heartburn symptoms?

 

Is heartburn during pregnancy a chemical or mechanical process

Definition

Progesterone, relaxin

 

It is a mechanical process

Term

Physiologic changes in pregnancy: 

Renal

Definition

Increased renal blood flow

Dilation and urinary stasis in renal pelves (droopy ureters) *risk for UTI/pyelo

Increased GFR (though "sloppy" so glucose and traces of protein may be spilled)

Increased frequency with mechanical compression of bladder

Term
Chadwick's sign
Definition
Blue vagina
Term
Normal CV changes in pregnancy
Definition

- Lateral displacement of the heart

- Increased stroke volume, HR, CO

- Vasodilation with subsequent drop in BP

- Increase in resting HR by 10-15 bpm

- Systolic murmur up to 90%

- Increase in blood volume, max @32 weeks (50% increase in plasma volume)

- increase in clotting factors

Term
Hematologic changes during pregnancy
Definition

Increase in plasma and RBC's

physiologic anemia of pregnancy

Fetus begins to store iron after 20 weeks

Immunocompromise

Elevated WBC

"Shift" to the left

Changes in lab tests

Incrase in clotting factors

Decrease in Hgb, Hct, increase in WBC

Increase in alkaline phosphotase

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