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Guys, we spend so much time on diabetes, CHF, COPD, etc. But some of the less common conditions have really dangerous complications, and NCLEX loves testing what the nurse should recognize FIRST.
A few worth knowing. Esp if you’re doing prioritization questions.
1. Guillain-Barré syndrome (GBS)
Weakness starts in the legs and moves upward. Reflexes disappear. Often happens after a GI or respiratory infection.
Big danger? Respiratory failure. Monitor vital capacity, breathing, and swallowing. SpO₂ can look normal even when respiratory muscles are getting dangerously weak.
2. Myasthenia gravis
Ptosis, double vision, difficulty swallowing. Weakness gets worse w activity and improves w rest.
If the pt suddenly can’t swallow, cough effectively, or hold their head up, think myasthenic crisis. Airway and respiratory assessment come FIRST.
3. Thrombotic thrombocytopenic purpura (TTP)
Low platelets + hemolytic anemia, often w schistocytes. May have confusion, renal problems, or fever.
This one is a true emergency. Urgent plasma exchange is the key treatment. And btw, platelet transfusions are generally avoided unless there’s life-threatening bleeding.
4. Hemolytic uremic syndrome (HUS)
Child has bloody diarrhea, then develops pallor, low platelets, and decreased urine output.
Think acute kidney injury. Monitor BP, electrolytes, urine output, and renal function. Antibiotics and antimotility drugs should be avoided in suspected STEC infection.
5. Malignant hyperthermia
Pt under anesthesia develops rising end-tidal CO₂, tachycardia, muscle rigidity, and metabolic acidosis.
Here’s what ppl miss. HIGH FEVER CAN BE LATE.
Stop triggering anesthetic agents, call for help, give 100% O₂, and prepare IV dantrolene.
6. Stevens-Johnson syndrome (SJS)
Recently started a med such as lamotrigine or allopurinol. Now fever, painful rash, blisters, mouth sores, maybe eye involvement.
Not a simple drug allergy. Stop the suspected med, notify the provider immediately, assess airway and fluids. These pts can deteriorate very quickly.
7. Kawasaki disease
Persistent fever, strawberry tongue, red eyes, cracked lips, rash, swollen hands/feet.
Major concern is coronary artery aneurysm. IVIG + prescribed aspirin are standard treatment. Yes, aspirin in a child. This is one of the important exceptions.
8. Pheochromocytoma
Severe episodic HTN, headaches, sweating, palpitations.
Remember the med sequence. ALPHA blockade before BETA blockade when both are needed. Beta blockade first can cause a serious hypertensive crisis.
9. Heparin-induced thrombocytopenia (HIT)
Platelets drop over 50%, usually 5–10 days after heparin exposure.
The scary part is thrombosis, not just bleeding. With intermediate/high clinical suspicion, stop ALL heparin, including flushes. Anticipate a non-heparin anticoagulant.
10. Meningococcemia
Fever, petechiae or purpura, hypotension, confusion. Can progress to septic shock and DIC really fast.
Droplet precautions, immediate escalation, prompt IV antibiotics, and sepsis management. Do NOT wait for the rash to spread.
A lot of NCLEX prioritization comes down to recognizing which pt is deteriorating, even when the initial findings look pretty ordinary.
Also, dont memorize these as just disease names. Connect the symptoms to the actual complication and the FIRST nursing action.
Which rare condition did your nursing school barely teach? Curious what ppl are actually seeing in clinicals lol.

Airway, breathing, circulation first. Always.

Then: is this actual or potential. An actual problem beats a risk for.

Then: is it acute or chronic. New shortness of breath beats long standing shortness of breath.

Then: is it unstable or stable. A changing value beats a bad value that has not moved.

Maslow comes last, and only once nobody is physiologically unstable. Safety before belonging, belonging before esteem.

Two that override everything. A pt who cannot maintain an airway. And anything u did that is still going in, so an infusion u started and an error u are mid way through outrank a pt who is waiting.

When two options are both physiological, pick the one that kills sooner. Airway kills in minutes, circulation in minutes to hours, and a potassium of 6.8 before a haemoglobin of 7.

Same style of question, free, on RNExamRoom. No sign up.

These are not the reference range. The number where u stop charting and pick up a phone.

K+ under 2.5 or over 6.5. Arrhythmia at both ends.
Na+ under 120 or over 160. Seizure at the low end, and correcting either too fast does its own harm.
Glucose under 40 or over 500.
Ca2+ under 6 or over 13.
Mg2+ under 1 or over 4.
Platelets under 20,000. Spontaneous bleeding.
Hgb under 7, which is the usual transfusion threshold in a stable pt.
INR over 5 on warfarin.
pH under 7.2 or over 7.6.

The exam asks these as which result do u report first, and the answer is the one that kills soonest. Potassium and glucose move fastest.

Report it, and document who u told and when.

Free bank on RNExamRoom if u want to drill this one.