Midterm Exam: NR547 / NR 547 (Latest Update
2025 / 2026) Differential Diagnosis in Psychiatric- Mental Health across the Lifespan Practicum | Questions & Answers | 100% Correct | Grade A - Chamberlain Name the 6 of a differential diagnosis - ANSWER 1.) RULE OUT Malingering or Factitous disorder 2.)Ruling out substance etiology 3.) ruling out a medical etiology 4.) Determining the specific primary disorder 5.) Differentiating adjustment disorder from the residual "other specified" and "unspecified" conditions 6.) Establishing the boundary with no mental disorder Remember with step 5, the PMHNP can use "other specified" in the diagnosis when they want to indicate the specific reason for a diagnosis.
They use "unspecified" if:
the information doesnt conform to DSM5 there is insufficient info to make a specific diagnosis there is more info the be revealed with time OR they want to help the patient avoid stigmas -
ANSWER 1 / 2
The PMHNP wants to rule out anemia as a cause for a patients fatigue and lack of motivation.What lab should she order? - ANSWER a CBC with iron studies hg-12-18
hematocrit: 38-48%
What is normal creat/BUN level? - ANSWER BUN: 7-18
creat: 0.6-1.2
A patient presents with brain fog, lack of focus, insomnia & mood swing, lack of mental alertness. What lab should the PMHNP order? - ANSWER THYROID FUNCTION TEST
TSH: 0.4-4.5
T3: 100-200
T4: 5-11
The patient has a b12 level of 126 picograms/mL. what symptoms may the patient experience? -
ANSWER normal B12: 190-950 picograms/mL
but borderline is 200-300 & will need additional testing.depression, mania, psychotic symptoms, cognitive impairment
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