Nurse Practitioner Chronicles

  Tick Bite Workup: Geography Drives the Differential, and Timing Determines the Test Don’t order Lyme titers the day after a tick bite. They’ll be negative. And don’t order them at all if the patient was bitten in Oklahoma. Tick-borne illness is one of primary care's most geography-dependent diagnoses. The tick species, the pathogen it carries, the region where the bite occurred, and the timing of your lab work all determine whether you'll catch the diagnosis or miss it entirely. This post maps out which diseases to suspect based on location, when to test, what tests to order, and—critically—when to treat empirically before labs come back. Step One: Identify the Tick and the Geography Tick Species Common Name Primary Geography Diseases Transmitted Ixodes scapularis Blacklegged tick / Deer tick Northeast, upper Midwest, mid-Atlantic (CT, MA, NY, NJ, PA, MN, WI) Lyme disease, Anaplasmosis, Babesiosis, Powassan virus, B. miyamotoi relapsing fever Ixodes pacificus Western blackleg...

  Fatigue Workup in Childbearing Women: Not a Fishing Trip Four tests. That’s the starting line: CBC, ferritin, TSH, pregnancy test. Not a 30-tube rainbow draw. “I'm just so tired all the time.” It's one of the most common complaints in primary care, and in women of childbearing age, the differential is simultaneously broad and predictable. The temptation is to order everything—a CMP, CBC, iron studies, B12, folate, vitamin D, cortisol, ANA, Lyme, EBV, celiac panel, ferritin, TSH, free T4, testosterone—and hope something lights up. That's not a workup. That's a fishing trip. And fishing trips catch incidental abnormalities that generate more tests, more anxiety, and no answers. This post makes the case for a disciplined, stepwise approach. The Core Four: Start Here, Every Time The First-Line Panel CBC : Anemia is the most common lab-identifiable cause of fatigue in this population. Look at hemoglobin AND MCV (microcytic = iron deficiency until proven otherwise). Ferriti...

  Pap Smear Interpretation: Bethesda Classification, HPV Co-Testing, and the ASCCP Management Guidelines ASC-US with negative HPV? Routine screening. AGC? Colposcopy, endocervical curettage, and possibly endometrial biopsy. Know the difference. Cervical cancer screening has evolved dramatically, yet the interpretation of results and management algorithms remain a source of confusion for many providers. The shift from cytology-only screening to HPV co-testing and primary HPV screening has changed when and how we act on results. This post walks through the Bethesda classification system, the current screening strategies, and the 2019 ASCCP risk-based management consensus guidelines. Current Screening Strategies Age Group Preferred Strategy Acceptable Alternatives Interval <21 years No screening (regardless of sexual activity or HPV vaccination status) None N/A 21–24 years Cytology (Pap) alone No HPV testing in this age group (too many transient infections) Every 3 years 25–65 year...