Myelosuppression or bone marrow
suppression, is a common side effect of chemotherapy that is
characterized by a decrease in blood cell production.
The majority of chemotherapy drugs
have been associated with myelosuppression.The most common cancer
drugs such as Fluorouracil (cause all forms of myelosuppression),
Oxaliplatin(neutropenia and thrombocytopenia), Irinotecan(cause
neutropenia), Capecitabine( cause all forms of myelosuppression)
are some examples that cause myelosuppression.
Myelosuppression does not hurt in
and of itself. However, a number of side effects that result from
low blood cell counts can have significant effects on an
individual's health.
The clinical features of
myelosuppression includes-
Symptoms associated with myelosuppression vary depending on the
specific type.
1. Side effecs of anemia
includes:
- Fatigue
- Dizziness
- Shortness of breath
- Pale skin
- Increased heart rate
2. Neutropenia resuls in reduction
in the body's ability to fight off disease, as a result:
- Fever and chills
- signs of infection including
swelling, redness
- Diarrhea
- rashes occurs.
3. Thrombocytopenia is most commonly
characterized by
- Easy bruising and bleeding from the
nose, gums or mouth.
- Blood may also show up in urine or
bowel movements.
- Petechiae (Small red spots on the
skin )
Special precautions of
myelosuppression to chemotherapy administration :
- Once chemotherapy is completed,
blood counts should return to normal after a few weeks. Before
starting the chemotherapy complete blood count should be assessed.
If early signs of damage are identified, or blood counts dip
dangerously low, then chemotherapy may be stalled, reduced or
stopped altogether to allow the bone marrow to recover.
- If the patient is neutropenic and
febrile with or without clinical signs (such as vomiting, diarrhea,
trembling, dehydration, weakness, lethargy) chemotherapy should be
discontinued.
- Check for occult infections such as
in the urinary tract or skin prior to therapy, and reduce
chemotherapy drug doses in patients that have previously shown
extreme sensitivity to these agents may be helpful in reducing its
occurrence.
- The nurses should must wear
approved chemotherapy mask, gown, and gloves while preparing
chemotherapy agents.
- Most chemotherapeutics are
administered intravenously, a well-placed catheter should be
established and flushed with 0.9% sodium chloride before and after
administration of he chemotherapy drug.
- Strict adherence to IV catheter
rules can eliminate the occurance of extravasation.
- The nurse should advice the clients
about some simple ways to reduce visible symptoms of
myelosuppression. These include:
- Avoiding strenuous activities such
as contact sports
- Engaging in low-impact
exercise
- Avoiding foods with sharp edges
that may promote bleeding
- Abstaining from alcohol
- Washing hands frequently to avoid
infection
- Eating a high-protein diet
- Staying hydrated
- Stop shaving the arms, legs and
face.