OB Question -What is "nadir" in regards to fetal monitoring strips?

[RescueNinja2013]

Hello everyone, I just started OB this semester and would like to know what is the definition of "nadir" in regards to fetal monitoring strips and NOT chemotherapy? Every time I search it online, it states solely for chemo, but that's not what I'm looking for; and my clinical instructor couldn't explain to our group either, but said she'll look into it. If you can explain to me like I'm 4 years old, I'd appreciate it!

Also, I wouldn't mind someone's simpler explanation of deceleration types and any references you have that may help. Thank you much!

[phuretrotr]

Nadir is the lowest point after the onset of an early/late deceleration and variable.

We used VEAL CHOP

V- Variable C- Cord compression

E- Early H- Head compression

A- Acceleration O- Okay

L- Late P- Placenta insufficiency

This thread has a lot of good information as well: https://allnurses.com/nursing-student-assistance/felat-accelerations-decelerations-283725.html

[Esme12, ASN, BSN, RN]

You will find this article helpful......Interpretation of the Electronic Fetal Heart Rate During Labor

Interpretation of the Electronic Fetal Heart Rate During Labor - May 1, 1999 - American Family Physician

[AgentBeast, MSN, RN]

Early, Variable, and Late Decelerations | OB Fetal Heart Tone Monitoring Decelerations

[nurseprnRN, BSN, RN]

The definition of nadir applies to many situations:

[h=2]na-dir[/h]   [ney-der, ney-deer] Show IPA

noun1.Astronomy . the point on the celestial sphere directly beneath a given position or observer and diametrically opposite thezenith.

2.Astrology . the point of a horoscope opposite the midheaven:the cusp of the fourth house.

3.the lowest point; point of greatest adversity or despair.

In chemistries, it's the lowest point; in antibiotic monitoring, it's the lowest blood level (pre-dose)l in psych, it's the point the patient feels the worst.... you get the picture.