4- Early pregnancy complications (hyperemesis gravidarum and abortion) Flashcards
when does N and V start in pregnancy
starts 4-7 weeks
peaking around 10-12 weeks gestation
resolves 16-20 weeks
cause of N and V in pregnnacy
rapidly increasing levels of hCG produced by the placenta- triggers chemoreceptor trigger zone
- higher levels make symptoms worse
which sort of pregnancies can make n and v worse
- first pregnancy
- overweight women
- molar pregnancies
- multiple pregnancies
The severe form of nausea and vomiting in pregnancy is called
hyperemesis gravidarum
- Hyper- refers to lots, -emesis refers to vomiting
- Gravida- relates to pregnancy.
when can Hyperemesis gravidarum be diagnosed
prolonged/ protracted NVP (N+V of pregnancy) +
- More than 5 % weight loss compared with before pregnancy
- Dehydration
- Electrolyte imbalance
other signs of true HG
- marked ketosis
- nutritional def
which scale can be used to measure severity of NVP
Pregnancy-Unique Quantification of Emesis (PUQE) score. This gives a score out of 15:
< 7: Mild
7 – 12: Moderate
> 12: Severe
management of mild HG
In the community
1) Antiemetics are used to suppress nausea. Vaguely in order of preference and known safety, the choices are:
- Prochlorperazine (stemetil)
- Cyclizine
- Ondansetron
- Metoclopramide
2) Antacids can be used if acid reflux a problem
- ranitidine or omeprazole
3) Complementary therapies
- Ginger
- acupressure on the wrist at the PC6 point (inner wrist)
when should admission for HG be considered
- Unable to tolerate oral antiemetics or keep down any fluids
- More than 5 % weight loss compared with pre-pregnancy
- Ketones are present in the urine on a urine dipstick (2 + ketones on the urine dipstick is significant)
- Other medical conditions need treating that required admission
In patient care for mod-severe HG
- IV or IM antiemetics
- IV fluids (normal saline with added potassium chloride)
- Daily monitoring of U&Es while having IV therapy
- Thiamine supplementation to prevent deficiency (prevents Wernicke-Korsakoff syndrome)
- Thromboprophylaxis (TED stocking and low molecular weight heparin) during admission
In patient care for mod-severe HG
- IV or IM antiemetics
- IV fluids (normal saline with added potassium chloride)
- Daily monitoring of U&Es while having IV therapy
- Thiamine supplementation to prevent deficiency (prevents Wernicke-Korsakoff syndrome)
- Thromboprophylaxis (TED stocking and low molecular weight heparin) during admission
define termination
elective procedure to end a pregnancy
Abortion is the removal of an embryo or fetus from the uterus before viabilitoty
- spontanaeous abortion- miscarriage
- induced abortion- termination
up to how many weeks is an abortion legal
The earlier in pregnancy an abortion is undertaken, the safer it is likely to be
24 weeks
has been reduced from 28
simple criteria for abortion
An abortion can be performed before 24 weeks if continuing the pregnancy involves greater risk to the physical or mental health of:
- The woman
- Existing children of the family
The threshold for when the risk of continuing the pregnancy outweighs the risk of terminating the pregnancy is a matter of clinical judgement and opinion of the medical practitioners.
An abortion can be performed at any time during the pregnancy if:
- Continuing the pregnancy is likely to risk the life of the woman
- Terminating the pregnancy will prevent “grave permanent injury” to the physical or mental health of the woman
- There is “substantial risk” that the child would suffer physical or mental abnormalities making it seriously handicapped
The legal requirements for an abortion are (abortion act 1967):
- Two registered medical practitioners must sign to agree abortion is indicated
- It must be carried out by a registered medical practitioner in an NHS hospital or approved premise
how are abortion services accessed
- by self-referral
- by GP
- GUM
- family planning clinic referral.
conscientious objection: if you as a doctor object to abortions what should you do
Medical professionals have the right to conscientious objection, however even those who wish to abstain from involvement in the procedure must be trained in and recognise the need for evidence based counselling and safe abortion care, including referral pathways.
pass on to another doctor able to make the referral