Vaccine Schedules

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Questions and Answers

What is the drug class of methotrexate?

Antineoplastic

What is the name of the enzyme that folic acid analogs block to inhibit the synthesis of folic acid?

  • Dihydrofolate reductase (correct)
  • Tetrahydrofolate reductase
  • Thymidylate synthase
  • None of the above

What are the side effects of methotrexate?

  • Severe bone marrow suppression
  • Alopecia
  • Liver damage
  • All of the above (correct)

What is the name of the test that is used to monitor bone marrow suppression?

<p>Complete blood count (CBC)</p> Signup and view all the answers

Methotrexate is incompatible with multiple other drugs in solution.

<p>True (A)</p> Signup and view all the answers

What is the name of the yeast superinfection that can occur in the mouth?

<p>Stomatitis</p> Signup and view all the answers

What type of cancer is Leuprolide used to treat?

<p>Prostate cancer</p> Signup and view all the answers

GnRH agonists can cure prostate cancer.

<p>False (B)</p> Signup and view all the answers

What is the mechanism of action of GnRH agonists?

<p>They inhibit the release of testosterone. (C)</p> Signup and view all the answers

What type of drug is tamoxifen?

<p>Selective estrogen receptor blocker</p> Signup and view all the answers

Tamoxifen can increase the risk for endometrial hyperplasia.

<p>True (A)</p> Signup and view all the answers

What are the adverse reactions of tamoxifen?

<p>All of the above (D)</p> Signup and view all the answers

Tamoxifen is contraindicated in clients who are on anticoagulant therapy.

<p>True (A)</p> Signup and view all the answers

Tamoxifen can decrease the effectiveness of bromocriptine.

<p>True (A)</p> Signup and view all the answers

Tamoxifen can increase the risk for thromboembolism.

<p>True (A)</p> Signup and view all the answers

Which vaccines are recommended for children from birth to 6 years old?

<p>Diphtheria, Tetanus, and Acellular Pertussis (DTaP) (A), Hib vaccine (B)</p> Signup and view all the answers

What is the appropriate age range for administering the booster dose of TDaP vaccine?

<p>11-12 years old (D)</p> Signup and view all the answers

What is the antineoplastic drug that acts as a folic acid analog?

<p>Methotrexate (B)</p> Signup and view all the answers

Which of the following is NOT a known adverse reaction to methotrexate?

<p>Increased platelets (D)</p> Signup and view all the answers

Which vaccine is recommended for adults over 65 years old?

<p>Flu vaccine (A), Herpes zoster (shingles) vaccine (B)</p> Signup and view all the answers

What condition does methotrexate primarily treat when used in small doses?

<p>Rheumatoid arthritis (B)</p> Signup and view all the answers

At what age should children receive the meningococcal conjugate vaccine (MCV-4)?

<p>2 years old if at risk (A), 11-18 years old (B)</p> Signup and view all the answers

Which of the following components does methotrexate disrupt during DNA synthesis?

<p>Folic acid synthesis (A)</p> Signup and view all the answers

What does the term 'nadir' refer to in the context of chemotherapy?

<p>The time of lowest blood cell counts post-chemotherapy (B)</p> Signup and view all the answers

What is a significant risk when methotrexate is used concurrently with nonsteroidal anti-inflammatory drugs (NSAIDs)?

<p>Increased risk of methotrexate toxicity (D)</p> Signup and view all the answers

Which patient reaction should be monitored when administrating nitrogen mustard drugs?

<p>Alopecia and its impact on self-esteem (A)</p> Signup and view all the answers

What physiological response is primarily responsible for nausea and vomiting during chemotherapy?

<p>Activation of the chemoreceptor trigger zone (CTZ) (D)</p> Signup and view all the answers

Why is it important to discuss hair loss with patients receiving cyclophosphamide treatment?

<p>It can significantly impact their self-esteem (C)</p> Signup and view all the answers

What characterizes nitrogen mustard drugs in terms of cell cycle specificity?

<p>They are cell cycle phase non-specific (B)</p> Signup and view all the answers

What should be checked before a patient's use of vitamin or mineral supplements during methotrexate therapy?

<p>Provider's approval (B)</p> Signup and view all the answers

How does acute alcohol consumption affect patients undergoing chemotherapy?

<p>It increases the risk of hepatotoxicity (D)</p> Signup and view all the answers

What is the primary risk associated with doxorubicin that requires monitoring?

<p>Severe bone marrow suppression (D)</p> Signup and view all the answers

Which of the following symptoms should a patient receiving doxorubicin report immediately?

<p>Rapid heartbeat or palpitations (B)</p> Signup and view all the answers

What impact does leuprolide have on the treatment of advanced prostate cancer?

<p>It limits hormonal influences on cancer growth. (A)</p> Signup and view all the answers

What type of rebound effect is associated with cessation of GnRH agonists like leuprolide?

<p>Increased tumor growth due to testosterone surge (A)</p> Signup and view all the answers

Which of the following side effects is reversible after discontinuing doxorubicin?

<p>Alopecia (B)</p> Signup and view all the answers

What client instruction is important concerning the timing of side effects from doxorubicin?

<p>White blood counts decline 10-14 days post-treatment. (A)</p> Signup and view all the answers

What is considered a non-cancer use of GnRH agonists like leuprolide?

<p>Management of endometriosis (A)</p> Signup and view all the answers

What critical information should female clients receiving doxorubicin be advised about?

<p>They must report any symptoms of liver damage immediately. (D)</p> Signup and view all the answers

What is the significance of monitoring the complete blood count (CBC) in patients undergoing therapy?

<p>To identify potential bone marrow depression (C)</p> Signup and view all the answers

What should clients do to minimize the risk of bleeding if thrombocytopenia develops?

<p>Apply prolonged pressure to puncture sites (B)</p> Signup and view all the answers

Which measure can help prevent stomatitis in clients undergoing treatment?

<p>Practicing good oral care (C)</p> Signup and view all the answers

Which of the following symptoms should clients report immediately due to the risk of liver damage?

<p>Yellowing of skin and eyes (C)</p> Signup and view all the answers

What dietary changes are advised for clients receiving treatment to reduce infection risk?

<p>Washing fresh fruits and vegetables thoroughly (B)</p> Signup and view all the answers

What should be done to avoid complications from oral ulcerations during treatment?

<p>Use a soft toothbrush (B)</p> Signup and view all the answers

Which patient population should avoid treatment due to the risk of GI ulceration?

<p>Clients with a history of peptic ulcer disease (C)</p> Signup and view all the answers

Why is it important for clients to use contraception during treatment?

<p>Because of teratogenic effects of folic acid analogs (C)</p> Signup and view all the answers

What is the effect of regular administration of GnRH on testosterone production?

<p>It initially increases testosterone production but ultimately decreases it. (A)</p> Signup and view all the answers

Which adverse effect is NOT associated with tamoxifen?

<p>Decreased risk for thrombophlebitis. (A)</p> Signup and view all the answers

What should clients taking tamoxifen be specifically instructed to report?

<p>Persistent nausea and severe hot flashes. (A)</p> Signup and view all the answers

What is a common reason for recommending tamoxifen to premenopausal women?

<p>To prevent breast cancer in high-risk individuals. (C)</p> Signup and view all the answers

Which of the following therapies is likely to increase endometrial proliferation?

<p>Administering estrogen receptor blockers like tamoxifen. (C)</p> Signup and view all the answers

What potential outcome is associated with desensitization of pituitary receptors due to GnRH drug administration?

<p>Complete cessation of testosterone production. (B)</p> Signup and view all the answers

Which condition should clients taking tamoxifen be monitored for, due to its potential effects?

<p>Endometrial hyperplasia. (A)</p> Signup and view all the answers

How does tamoxifen promote cardiovascular health?

<p>By increasing HDL cholesterol levels. (A)</p> Signup and view all the answers

Flashcards

Vaccine schedule (birth-6 years)

Recommended vaccines for infants and young children, including Hepatitis A & B, Rotavirus, DTaP, Hib, IPV, MMR, and Varicella.

Vaccine schedule (7-18 years)

Booster and additional vaccines for adolescents, such as TDaP, HPV, and MCV-4.

Vaccine schedule (adult/older adult)

Vaccines recommended for adults, including annual flu shots, TD boosters, pneumococcal vaccines, and potentially others based on individual needs.

Methotrexate (Trexall)

A folic acid analog used to treat rheumatoid arthritis, psoriasis, and cancer.

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Methotrexate mechanism

Inhibits dihydrofolate reductase, disrupting DNA synthesis in cancer cells during S phase.

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Methotrexate side effects

Bone marrow suppression (low blood cells), liver damage, GI ulcers, pulmonary damage.

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Methotrexate monitoring

Regular CBC, platelet, WBC, and liver function tests are crucial during and after therapy.

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Methotrexate administration

Available orally, IM, IV, and intrathecally; Leucovorin may be given as an antidote.

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Methotrexate client instructions

Report fever, bleeding, unusual fatigue, and other symptoms. Avoid infections, and use caution with oral care to prevent complications.

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Methotrexate contraindications

Pregnancy, liver/kidney issues, peptic ulcers, or active infections.

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Methotrexate interactions

Interacts with other drugs, potentially leading to toxicity. Alcohol increases liver risk.

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Nadir (in cancer treatment)

The lowest point in blood cell counts following chemotherapy, usually leukocytes and platelets.

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Chemotherapy-induced nausea/vomiting (N/V)

Nausea and vomiting caused by stimulation of the chemoreceptor trigger zone (CTZ) in the brain.

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Nitrogen Mustards

Chemotherapeutic agents (e.g., cyclophosphamide) used for various cancers, causing alopecia (hair loss).

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Anthracyclines (Doxorubicin)

Chemotherapeutic agents with bone marrow suppression, cardiac toxicity, and tissue damage risks.

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Doxorubicin side effects

Bone marrow suppression, alopecia, red urine/tears, cardiac toxicity etc.

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Gonadotropin-releasing hormone agonists (GnRH)

Drugs (e.g., leuprolide) that treat prostate cancer by decreasing testosterone.

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GnRH Agonists (Leuprolide) mechanism

Initially increases then decreases testosterone production, desensitizing pituitary receptors.

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Estrogen Receptor Blockers (Tamoxifen)

Drugs that block estrogen's effect on breast cancer cells.

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Tamoxifen side effects

Nausea/vomiting, hot flashes, blood clots, endometrial cancer risk.

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Tamoxifen client instructions

Report symptoms such as bleeding, chest pain, or vision changes. Have regular checkups.

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What is Methotrexate's primary mechanism?

Methotrexate blocks the synthesis of folic acid by inhibiting the enzyme dihydrofolate reductase, which is crucial for the activation of folic acid.

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How does Methotrexate affect cancer cells?

By disrupting DNA synthesis during the S-phase of cell formation, Methotrexate effectively kills cancer cells.

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What are the main adverse reactions of Methotrexate?

Methotrexate can cause severe bone marrow suppression, leading to decreased red blood cells (anemia), white blood cells (weakened immunity), and platelets (increased risk of bleeding).

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Why do some adults need the pneumococcal vaccine?

Adults over 65 years old are recommended to receive the pneumococcal vaccine, and younger adults who smoke or have other health risks might also need it.

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What is the purpose of the TDaP vaccine?

The TDaP vaccine is a booster dose that protects against tetanus, diphtheria, and pertussis (whooping cough) in adolescents and adults.

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Why are MMR and Varicella vaccines important for adults?

Measles, mumps, rubella, and varicella (chickenpox) are potentially severe diseases that can affect adults. Vaccination ensures immunity against these diseases.

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What is the recommended frequency for flu vaccines?

It is recommended to receive a flu vaccine every year.

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What is the recommended frequency for the Td vaccine?

Adults should receive a Td booster every 10 years to maintain immunity against tetanus and diphtheria.

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Methotrexate Supplements

Folic acid supplements can affect how methotrexate works. Any vitamin/mineral supplements should be approved by the healthcare provider.

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Nadir in Chemotherapy

Nadir is the lowest point in blood cell counts (especially leukocytes and platelets) after chemotherapy. It's when monitoring for low cell counts is crucial.

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Chemotherapy N/V Cause

Many cancer drugs cause nausea and vomiting by stimulating the chemoreceptor trigger zone (CTZ) in the brain.

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Nitrogen Mustard & Alopecia

Nitrogen mustard drugs like cyclophosphamide can cause temporary hair loss (alopecia). It's important to support the client's feelings about this change.

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Alkylating Agents & Cell Cycle

Alkylating anticancer drugs, like nitrogen mustards, damage DNA by forming abnormal bonds. They can kill cancer cells at any stage of their cycle.

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Combining Chemotherapy Drugs

Effective cancer treatment often involves pairing a cell cycle phase non-specific drug (like an alkylating agent) with a phase-specific drug.

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Methotrexate: What is it used for?

Methotrexate is a drug used to treat various conditions like rheumatoid arthritis, psoriasis, and cancer. It works by inhibiting the production of DNA, slowing down the growth of fast-dividing cells.

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Methotrexate Side Effects: What to watch out for?

Methotrexate can cause side effects like bone marrow suppression (affecting blood cell production), liver damage, GI ulcers, and pulmonary damage.

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Methotrexate: How does it affect the blood?

Methotrexate can suppress bone marrow, leading to low levels of blood cells like platelets (for clotting), erythrocytes (red blood cells for oxygen), and leukocytes (white blood cells for fighting infection).

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Methotrexate: What to monitor closely?

During methotrexate therapy, it's crucial to monitor blood cell counts (CBC) regularly, including platelets, erythrocytes, leukocytes, hemoglobin, and hematocrit. Watch for signs of infection and bleeding.

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Methotrexate: Who should NOT take it?

Methotrexate is contraindicated in pregnancy due to teratogenic effects (harm to the fetus). It's also unsuitable for people with severe liver or kidney problems, peptic ulcers, or active infections.

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Methotrexate: What to do if you have fever?

Report any fever, sore throat, easy bruising, or unusual fatigue to your doctor immediately. Methotrexate can suppress your immune system.

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Methotrexate: How to minimize infection risk?

To reduce the risk of infection when taking methotrexate, wash your hands frequently, limit contact with sick people, and practice good oral care.

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Methotrexate: What about alcohol?

Avoid alcohol while on methotrexate, as it can increase the risk of liver damage. Report any yellowing of the skin or eyes to your doctor.

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Anthracyclines: What are they known for?

Anthracyclines like Doxorubicin are powerful chemotherapy drugs used to treat various cancers. They are known for their effectiveness but also for causing severe bone marrow suppression, cardiac toxicity, and tissue damage.

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Doxorubicin Side Effect: Bone Marrow Suppression

Doxorubicin can severely suppress bone marrow, leading to low white blood cells (leukopenia), platelets (thrombocytopenia), and red blood cells (anemia). This makes patients prone to infections, bleeding, and fatigue.

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Doxorubicin Side Effect: Cardiac Toxicity

Doxorubicin can damage the heart, leading to problems like irregular heartbeat, shortness of breath, chest pain, and even heart failure. The risk increases with each dosage and can manifest months or years after treatment.

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Doxorubicin: What to Watch Out For

Patients receiving Doxorubicin should be monitored closely for signs of bone marrow suppression (fever, fatigue, bleeding) and cardiac toxicity (rapid heartbeat, chest pain, shortness of breath).

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GnRH Agonists: What do they do?

GnRH agonists, like Leuprolide, are used to treat prostate cancer by reducing testosterone levels. They don't cure the cancer, but they can control pain and slow its progression.

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Leuprolide: How does it work?

Leuprolide initially increases testosterone levels, but then it quickly decreases them by desensitizing the pituitary gland, which regulates testosterone production.

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GnRH Agonists: Uses beyond Cancer?

While mainly used for prostate cancer, certain GnRH agonists are also used to treat conditions like endometriosis and uterine fibroid tumors in women.

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Prostate Cancer Treatment: Why GnRH?

GnRH agonists provide a non-surgical alternative to castration or orchiectomy for advanced prostate cancer. They offer pain control and slow cancer progression.

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GnRH Agonists

Drugs like leuprolide that initially stimulate testosterone production, but then decrease it by desensitizing pituitary receptors.

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GnRH Agonist Effect on Testosterone

Regular administration of GnRH agonists leads to a decrease in testosterone production due to desensitization of pituitary receptors.

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Tamoxifen Mechanism

Blocks estrogen receptors in breast tissue, reducing estrogen-dependent cancer growth.

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Tamoxifen's Double-Edged Sword

While blocking estrogen in breast tissue, it activates estrogen receptors in the uterus, increasing endometrial cancer risk.

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Tamoxifen's Effect on Bone Density

Activates estrogen receptors to maintain bone density and increase HDL (good cholesterol).

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Why Monitor for Bleeding?

Abnormal menstrual bleeding while taking tamoxifen could indicate endometrial hyperplasia or cancer.

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Study Notes

Vaccine Schedules

  • Birth-6 years: Hepatitis A & B, Rotavirus, Diphtheria, Tetanus, Acellular Pertussis (DTaP), Haemophilus influenzae type B (Hib), Inactivated Poliovirus Vaccine (IPV), Measles, Mumps, and Rubella (MMR), Varicella (chickenpox). Annual flu vaccine is recommended for children at least 6 months of age.
  • 7-18 years: TDaP booster between ages 11-12 following initial DTaP series. Human Papillomavirus (HPV) vaccine recommended for 11-12 year olds. Meningococcal conjugate vaccine (MCV-4) recommended between ages 11-18, or earlier for those with compromised immune systems. Flu vaccine yearly.
  • Adults/Older Adults: Annual flu vaccine. Tetanus and diphtheria (TD) booster every 10 years. Pneumococcal vaccine is recommended for those over 65, or at risk adults. Hepatitis A or B, Measles, Mumps, Rubella, and Varicella vaccines may be necessary for adults. Herpes Zoster (shingles) vaccine recommended for adults over 50.

Folic Acid Analogs (Methotrexate)

  • Drug Class: Antineoplastic
  • Uses: Treats rheumatoid arthritis and psoriasis.
  • Mechanism: Blocks folic acid synthesis by inhibiting dihydrofolate reductase, disrupting DNA synthesis in rapidly dividing cells (cancer cells).
  • Adverse Reactions: Severe bone marrow suppression (decreased platelets, white blood cells, and red blood cells), liver damage, GI ulcerations, pulmonary damage.
  • Monitoring: Complete blood counts (CBC) including platelets, erythrocytes, leukocytes, hemoglobin, and hematocrit should be monitored before, during, and after treatment. Monitor for fever due to infection risk.

Other Relevant Information

  • Nadir: The lowest point in blood cell counts after chemotherapy, used to determine intervals for monitoring.
  • Nitrogen Mustards/Alopecia: Some anticancer drugs, like nitrogen mustards, cause temporary hair loss.
  • Anthracyclines (Doxorubicin): Some chemotherapy drugs can cause severe bone marrow suppression (leukocyte, platelet, and erythrocyte depression). Other side effects include reversible alopecia, red urine/tears, and cardiac and liver toxicity.
  • Gonadotropin-releasing hormone agonists (GnRH) (e.g., Leuprolide): Used in the treatment of advanced prostate cancer by suppressing testosterone production.
  • Estrogen Receptor Blockers (e.g., Tamoxifen): These medications block estrogen receptors in breast tissue, reducing estrogen's effects. They are used in treating breast cancer and to prevent risk of developing breast cancer. They can elevate the risk of endometrial cancer in pre-menopausal women.
  • Nausea and Vomiting (chemotherapy-induced): Chemotherapy drugs can cause nausea, and vomiting in some clients. This may occur prior to, during, and after chemotherapy sessions. Nausea can last for several days.

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