This article covers some of the complications of pregnancy, specifically infections that could place the developing fetus at risk.
This series follows along with our Maternity Nursing Flashcards, which are intended to help RN and PN nursing students study for nursing school exams, including the ATI, HESI, and NCLEX.
Maternity Nursing - Flashcards
TORCH infections
TORCH is an acronym for the group of some of the most common infections associated with congenital anomalies, also called teratogenic infections.
What is teratogenic?
TORCH infections are teratogenic (i.e., they may cause birth defects). The mnemonic “T.O.R.C.H.” is used to remember these infections:
Toxoplasmosis
Toxoplasmosis is a parasitic infection that a pregnant patient may acquire by consuming raw or undercooked meat or by handling cat feces.
Patients should be taught to cook foods thoroughly and to not clean a cat litter box. Because toxoplasmosis can be found in garden soil (the soil may contain contaminants and/or animal feces), patients should also be told not to garden during pregnancy.
Other
Other is a catch-all for infections that include varicella (chicken pox), syphilis (a bacterial infection usually spread by sexual contact), and parvovirus (parvovirus B19 can cause severe anemia), all of which are considered teratogenic.
Rubella
Rubella, also known as German measles, is a contagious disease. It is the “R” in the MMR vaccine: measles, mumps, and rubella.
Patients are typically tested in early pregnancy to see if they are rubella immune. It is important to know if they have had the condition previously, or if they have been thoroughly vaccinated and have good levels of antibodies against rubella. If not, the patient should be advised to avoid anybody with a known rubella infection.
Patients should also be instructed to get vaccinated. They will receive their MMR vaccine in the postpartum period. Vaccination is done postpartum because live virus vaccinations are contraindicated during pregnancy, meaning the patient cannot get the MMR vaccine during pregnancy. They will have to do it once they have delivered.
Cytomegalovirus
Cytomegalovirus (CMV) is part of the herpes virus family, and is relatively common. However, because this is a teratogenic infection, a patient should be tested for CMV. Teach the patient to avoid any contact with someone with known or suspected CMV.
Herpes simplex virus
Herpes simplex virus is a sexually transmitted infection (STI) that can cause genital lesions.
If the patient has active lesions, herpes may be transmitted to the baby during childbirth, and this can lead to serious complications for the baby. During pregnancy, a patient with herpes is usually given antivirals, and a C-section is often recommended. If the patient has active lesions, they should have a C-section to avoid passing herpes on to the baby. Remember that the decision to have a C-section when there are no active lesions is between the patient and their provider.
It is also very important to understand how dangerous herpes can be for a newborn. This is the reason people should not kiss babies that aren’t theirs, and why they should avoid kissing babies on their faces or on their hands. This is because if someone has HSV, herpes simplex virus, the type that causes cold sores, they can pass HSV onto that baby, which can cause blindness or death.
Sexually transmitted infections (STIs)
A sexually transmitted infection (also called sexually transmitted disease, or STD) is an infection transmitted through sexual contact, caused by bacteria, viruses, or parasites. These can cause serious health problems, including infertility.
Gonorrhea and chlamydia
Gonorrhea and chlamydia are two sexually transmitted infections, whose symptoms overlap. It is common to have both at the same time, though chlamydia is generally more common than gonorrhea.
Gonorrhea and chlamydia signs and symptoms
The signs and symptoms of gonorrhea and chlamydia in a pregnant person include dysuria (painful urination) and vaginal discharge.
Note that these infections are commonly asymptomatic — the patient will not exhibit symptoms, despite having the condition. This is important, because not knowing whether a patient has either of these infections means they will not receive treatment for them. But if the patient has gonorrhea or chlamydia, this can cause complications for the newborn.
One such complication is ophthalmia neonatorum, an infection of the baby’s eyes. That is why erythromycin ointment is put in the eyes of all babies prophylactically to prevent this condition.
Gonorrhea and chlamydia treatment
Gonorrhea and chlamydia may be treated with the administration of antibiotics (e.g., azithromycin for chlamydia, cephalosporins for gonorrhea).
Syphilis
Syphilis is a bacterial infection that can cause preterm labor and infant infection.
Syphilis signs and symptoms
The signs and symptoms of syphilis include genital chancres (ulcers), a rash on the hands and/or feet, and flu-like symptoms.
Syphilis treatment
Syphilis can be easily treated with antibiotics, for example, a dose of penicillin G.
Trichomoniasis
Trichomoniasis is a type of protozoan infection (parasitic disease) that can cause PROM and preterm labor. PROM is an acronym for Premature Rupture Of Membranes — the rupture of the amniotic sac before labor begins.
Trichomoniasis signs and symptoms
The signs and symptoms of trichomoniasis include a yellow/green, malodorous vaginal discharge; itching; and dysuria.
Trichomoniasis treatment
Treatment of trichomoniasis requires administering antibiotics, (e.g., metronidazole). In the event of a PROM infection, antibiotics should be administered to avoid possible infection in the newborn.
HIV/AIDS
HIV/AIDS is a retrovirus that destroys T lymphocytes leading to immunosuppression. It can be passed through body fluids, such as blood, semen, and vaginal secretions. During pregnancy HIV/AIDS may also be passed to the baby via the placenta and, after birth, when breastfeeding (via the breast milk).
HIV/AIDS nursing care
Nurses should use standard precautions when tending to a patient with HIV/AIDS.
During pregnancy and labor, the mother should continue to take prescribed antiretrovirals.
Antiretrovirals should be administered to the infant at delivery. And the newborn should be bathed immediately after birth (before remaining with the mother) to clean it of any body fluids from an HIV-infected mother.
HIV/AIDS patient teaching
A patient who has HIV or AIDS and is about to have a baby must be prepared. In addition to taking their prescribed medications, they should eat healthy and perform good hand hygiene. And they should be told in advance what to expect during delivery and in the postpartum period.
A C-section should be planned for around 38 weeks of gestation if the maternal viral load of HIV is greater than 1,000 copies per milliliter, because the higher the viral load, the higher the chances of passing the virus to the newborn. Performing a C-section minimizes the amount of body fluids that mix, potentially lessening the chance that the patient passes HIV to their baby.
Learn more about the most important lab value ranges for HIV/AIDS and more with Level Up RN's Lab Values Flashcards, designed to help nursing students pass their exams as well as being a helpful reference for practicing RNs, PNs, and other medical professionals.
HIV/AIDS contraindications
The mother should NOT breastfeed. This is one of the very few times where there is a very strong contraindication to breastfeeding. Instead, a patient with HIV can use donor breast milk or they can choose to formula feed. But they should not breastfeed.
In addition to the contraindication to breastfeeding, there are other contraindications for pregnant patients with HIV/AIDS. The HIV-positive patient should avoid amniocentesis and chorionic villus sampling or CVS (a test made in early pregnancy to detect congenital abnormalities in the fetus). Internal fetal monitors should not be used, as this involves placing a small electrode into the superficial surface of the baby’s scalp, which is a risk for infection, including passing HIV on to the baby.
During delivery, an episiotomy should not be performed (a procedure in which a laceration is made on the perineum to help the passage of the baby), nor should forceps or vacuum extraction be used.