👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Safety & Infection Control🔖 Free to read, print, and share
Also known as: low white blood cells · low neutrophils · low ANC · weak immune system from chemo · low infection-fighting cells
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Use this quick-reference guide to spot, treat, and prevent Neutropenia on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
🧪 Values
ANC <1000 = neutropenic
ANC <500 = SEVERE risk
🚩 Report
FEVER = only sign, emergency
may have NO pus/redness (no WBC)
temp >100.4 → call provider NOW
✅ Do
neutropenic precautions, private room
strict hand hygiene, limit visitors
filgrastim ↑neutrophils
📌 Avoid
NO raw fruits/veggies, fresh flowers
no sick visitors, no live vaccines
📚 Neutropenia — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
Neutropenia is a low absolute neutrophil count, severely impairing the body's ability to fight bacterial and fungal infection. It most often results from chemotherapy, radiation, leukemia, or bone marrow suppression. It matters because the patient can develop overwhelming infection with minimal warning signs, and fever may be the only indicator since the inflammatory response is blunted.
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Key points
Understand these first
The absolute neutrophil count (ANC) guides infection risk; an ANC below 500/mm3 is severe neutropenia.
Classic signs of infection (redness, pus, swelling) are diminished because neutrophils drive inflammation.
Fever is often the first and only sign of a serious infection.
The patient's own body flora and the GI tract are common infection sources.
Sepsis can develop rapidly and progress to septic shock.
Chemotherapy nadir (lowest count) typically occurs 7-14 days after treatment.
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Nursing priorities
What to do, in order
Implement neutropenic (protective) precautions: strict hand hygiene, private room, and limited visitors.
Avoid fresh flowers, standing water, and raw fruits/vegetables; serve a low-bacteria diet.
Monitor temperature frequently and assess for subtle signs of infection.
Avoid invasive procedures when possible: no rectal temps, suppositories, enemas, or indwelling catheters.
Administer growth factors (filgrastim) and antibiotics promptly as prescribed.
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Red flags — report now
Escalate immediately
Report a temperature of 100.4 F (38 C) or higher immediately; neutropenic fever is an emergency requiring prompt antibiotics.
Report any subtle change such as chills, malaise, new pain, or hypotension that may signal sepsis.
Never delay reporting infection signs waiting for classic redness or pus to appear.
Wash hands often, avoid crowds and sick people, and do not receive live vaccines or contact with recently vaccinated people.
Take temperature daily and call the provider immediately for a temperature of 100.4 F or higher.
Cook foods thoroughly, wash produce, avoid raw/undercooked foods, and practice good oral and skin hygiene.
❓ Neutropenia: NCLEX FAQs
What are the priority nursing interventions for Neutropenia?
Implement neutropenic (protective) precautions: strict hand hygiene, private room, and limited visitors. Avoid fresh flowers, standing water, and raw fruits/vegetables; serve a low-bacteria diet. Monitor temperature frequently and assess for subtle signs of infection. Avoid invasive procedures when possible: no rectal temps, suppositories, enemas, or indwelling catheters.
What are the warning signs of Neutropenia a nurse must report?
Report a temperature of 100.4 F (38 C) or higher immediately; neutropenic fever is an emergency requiring prompt antibiotics. Report any subtle change such as chills, malaise, new pain, or hypotension that may signal sepsis. Never delay reporting infection signs waiting for classic redness or pus to appear.
What do I need to know about Neutropenia for the NCLEX?
The absolute neutrophil count (ANC) guides infection risk; an ANC below 500/mm3 is severe neutropenia. Classic signs of infection (redness, pus, swelling) are diminished because neutrophils drive inflammation. Fever is often the first and only sign of a serious infection. The patient's own body flora and the GI tract are common infection sources.
What patient teaching is important for Neutropenia?
Wash hands often, avoid crowds and sick people, and do not receive live vaccines or contact with recently vaccinated people. Take temperature daily and call the provider immediately for a temperature of 100.4 F or higher. Cook foods thoroughly, wash produce, avoid raw/undercooked foods, and practice good oral and skin hygiene.
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Quick Tip
The absolute neutrophil count (ANC) guides infection risk; an ANC below 500/mm3 is severe neutropenia.