Ch. 18 Pharmacology of Reproductive Health: Hormones, Contraception, and Androgens

Chapter 18: Key Hormone Terminology

• Hormones: Defined as chemical messengers within the human body responsible for regulating various biological processes.

• Estrogen: The primary female sex hormone. It is metaphorically described as the "builder" because it builds the uterine lining and maintains secondary female characteristics.

• Progesterone: Referred to as the "protector" hormone, as its primary role is to maintain the uterine lining to support and sustain pregnancy.

• Menstruation: The physiological process of shedding the uterine lining when a patient is not pregnant.

• Menopause: The stage of life when the ovaries "retire." This is characterized by a significant drop in Estrogen levels, a corresponding rise in $FSH$ (Follicle-Stimulating Hormone), and the permanent cessation of menstrual periods.

• HRT (Hormone Replacement Therapy): The administration of synthetic hormones to replace those the body has stopped producing naturally.

Menopause: Pathophysiology and Clinical Characteristics (PIMPS)

• P (Pathophysiology): Menopause occurs when the ovaries cease functioning due to age. This leads to a crash in estrogen levels. In response, the brain releases excessive amounts of $FSH$ in an attempt to stimulate or "wake up" the ovaries.

• I (Interventions): Cooling measures are essential. Patients should be advised to:     * Dress in layers for easy removal during hot flashes.     * Utilize fans to maintain airflow.     * Avoid triggers such as hot or spicy foods.

• M (Management): Focuses on relieving symptoms of low estrogen, specifically:     * Hot flashes and night sweats.     * Dryness of the mucous membranes.

• P (Priority): Maintaining patient comfort and addressing the long-term risk of Osteoporosis (weakened, porous bones) resulting from decreased estrogen.

• S (Safety): Implement fall precautions to prevent bone fractures. Nurses must also assess how menopause symptoms are impacting the patient's sleep quality and general activities of daily living (ADLs).

Hormone Replacement Therapy (HRT) Medications (PAMPS)

• Example Medications: Premarin, Prempro.

• P (Pathophysiology): These medications are conjugated female sex hormones, which may consist of estrogen alone or a combination of estrogen and progestin.

• A (Antidote): There is no specific chemical antidote for HRT. The primary action is to stop the medication if severe adverse effects develop.

• M (Management): Medications must be administered exactly as prescribed. The clinical standard is to use the lowest effective dose for the shortest amount of time possible.

• P (Purpose): To alleviate severe perimenopausal symptoms, including hot flashes, night sweats, and sleep disturbances.

• S (Safety): HRT carries a significant risk for blood clots.     * Thromboembolic Monitoring: Monitor for signs of Deep Vein Thrombosis (DVT), Pulmonary Embolism (PE), Myocardial Infarction (MI), and stroke.     * Hepatotoxicity Monitoring: Assess the sclera (eyes) and the roof of the mouth weekly for jaundice (yellowing), which signals liver dysfunction.

HRT Concept Map: Classification and Clinical Implications

• Classification: Conjugated Female Sex Hormones.

• Mechanism of Action: Replaces missing estrogen and/or progesterone to lower $FSH$ levels, thereby halting menopause symptoms.

• Contraindications:     * History of blood clots, stroke, or heart attack.     * Liver or gallbladder disease.     * Hormone-sensitive cancers (e.g., breast, cervical, ovarian cancer).

• Side Effects:     * Breast tenderness.     * Breakthrough bleeding.     * Fluid retention and weight gain.     * Acne.

• Adverse Effects (Life-Threatening):     * Myocardial Infarction ($MI$).     * Stroke.     * Pulmonary Embolism ($PE$).     * Liver impairment.

• Nursing Interventions:     * Regularly monitor Blood Pressure ($BP$).     * Assess for edema (swelling).     * Perform routine checks for jaundice.

• Patient Teaching:     * Smoking Cessation: Patients must quit smoking, as the combination of smoking and HRT leads to an incredibly high risk for blood clots.     * Emergency Protocol: Call $911$ immediately for chest pain, sudden difficulty breathing, or severe leg swelling.     * Compliance: Take the medication exactly as ordered; do not skip any doses.

Hormonal Contraception (PAMPS)

• Example Medication: Yasmin.

• P (Pathophysiology): These medications utilize a mixture of hormones to "trick" the brain into believing the body is already pregnant, which prevents the release of eggs (ovulation).

• A (Antidote): Discontinue the medication.

• M (Management): The medication must be taken at the exact same time every single day to ensure hormone levels remain steady.

• P (Purpose): The intentional prevention of pregnancy.

• S (Safety): Continuous monitoring for blood clots is required, particularly in patients over the age of $35$ who are smokers.

Hormonal Contraceptives Concept Map: Nursing Considerations

• Classification: Hormonal Contraceptives (Birth Control Pills / BCPs).

• Mechanism of Action:     * Suppresses ovulation.     * Thickens cervical mucus to block sperm entry.     * Thins the uterine lining to prevent implantation.

• Contraindications:     * Smokers over age $35$.     * History of blood clots or DVT.     * Uncontrolled hypertension ($HTN$).

• Side Effects:     * Nausea.     * Breast tenderness.     * Spotting between periods.

• Patient Teaching:     * Consistency is key: take at the same time daily.     * Missed Dose Protocol: Follow package instructions—usually take the missed dose as soon as remembered or take two doses the following day.     * Drug Interactions: Antibiotics can reduce the effectiveness of BCPs. Always use a backup barrier method (e.g., condoms) while taking antibiotics.

Warning Signs for Estrogen/HRT: ACHES Mnemonic

• Patients taking Estrogen (HRT or BCPs) must be taught to watch for these potential signs of blood clots:     * A - Abdominal pain (severe): May indicate a liver/gallbladder issue or a pelvic clot.     * C - Chest pain or shortness of breath: Indicates a possible Pulmonary Embolism ($PE$) or Myocardial Infarction ($MI$).     * H - Headaches (sudden, severe): Indicates a possible stroke or dangerously high Blood Pressure.     * E - Eye problems (blurred vision): Indicates a possible stroke or a clot within the eye.     * S - Severe leg pain or swelling: Indicates a possible Deep Vein Thrombosis ($DVT$).

Crucial Safety Details for Hormonal Contraceptives

• Drospirenone (Yasmin): This specific progestin functions similarly to a potassium-sparing diuretic.     * Danger: It can cause Hyperkalemia (elevated potassium levels), which leads to dangerous cardiac arrhythmias.     * Contraindication: Do not administer to patients with kidney or liver disease.

• Drug Interactions: Herbal supplements and various medications (specifically antibiotics) can cause oral contraceptives ($OCs$) to fail.

• Pregnancy/Lactation:     * Never administer $OCs$ if pregnancy is suspected, as they cause birth defects.     * They interfere with breast milk production and can be passed to the infant via milk.

• Mini-Pills (Progestin-only): These must be taken continuously every single day without any break. If a dose is missed, a backup contraceptive method is required immediately.

Male Sex Hormones: Androgens and Anabolic Steroids

• Androgens: Male sex hormones, such as Testosterone, responsible for the development and maintenance of male characteristics.

• Anabolic Steroids: Synthetic drugs that mimic androgens, used for tissue building or to replace missing testosterone.

• PAMPS for Androgens (e.g., Testosterone / AndroGel, Testopel):     * P (Pathophysiology): Clinical testosterone replacement used for conditions like hypogonadism (low T), delayed puberty, or missing testicles.     * A (Antidote): No specific antidote; stop the medication.     * M (Management): Routes include IM (Intramuscular), SQ (Subcutaneous), gels, patches, or pellets implanted under the skin.     * Provider Safety: Nurses must wear double chemotherapy gloves when handling or preparing these medications to prevent accidental skin absorption.     * P (Purpose): Replacement of missing hormones and the promotion of tissue building.     * S (Safety):         * Liver Toxicity: A major risk with long-term therapy.         * IM Injection Protocol: Observe the patient for $30\,\text{mins}$ post-injection. The oil in the injection can migrate to the lungs (Pulmonary Oil Microembolism), leading to severe respiratory distress or anaphylaxis.

Androgen (Testosterone) Concept Map

• Classification: Androgens / Anabolic Steroids.

• Mechanism of Action: Stimulates the development of male sex organs and secondary traits (e.g., facial hair, deep voice) and promotes the building of skeletal muscle.

• Contraindications:     * History of breast or prostate cancer.     * Uncontrolled heart failure (due to fluid retention risks).     * Recent Myocardial Infarction ($MI$).     * Strictly contraindicated in pregnant women (causes severe birth defects).

• Side Effects:     * Edema (sodium retention).     * Acne.     * Hirsutism (excessive body hair).     * Nausea.

• Adverse Effects:     * Liver tumors or cancer.     * Jaundice.     * Pulmonary Oil Embolism (specific to the IM route).     * Decreased sperm count.

• Nursing Interventions:     * Maintain a $30\text{-minute}$ observation period after IM injections.     * Assess for liver toxicity signs: yellowing of skin/sclera, dark urine, or light-colored stools.     * Monitor daily weights and assess for peripheral edema.

• Client Education:     * Gel Safety: Wash hands immediately after application. Do not allow women or children to touch the application site (typically abdomen/shoulders) until the area is washed, to prevent drug absorption.     * Expectations: Results are not immediate; it can take $1$ to $2\,\text{months}$ to see desired effects. Do not increase the dose.     * Reporting: Immediately report severe swelling, respiratory issues, or skin/eye yellowing.

Testosterone Safety: TEST Mnemonic

• T - Toxic to the liver: Monitor for jaundice and dark urine.

• E - Edema: The medication retains sodium and water; this is particularly dangerous for patients with heart failure.

• S - Skin contact is dangerous: Nurses must wear gloves; women and children must avoid contact with gels.

• T - Thirty minutes: Mandatory observation period after IM injections to monitor for lung embolisms and allergic reactions.