+++
HOW TO USE THIS SECTION
++
This section shows how diagnostic tests can be used in differential diagnosis and difficult diagnostic challenges. Material is presented in algorithmic forms, and contents are listed in alphabetical order by condition.
++
Abbreviations used throughout this section include the following: N = Normal; ↑ = Increased or high; ↓ = Decreased or low.
++
Each algorithm uses the following conventions:
+
+++
ACID–BASE DISTURBANCES: DIAGNOSTIC APPROACH
++
+++
ADRENAL MASS: DIAGNOSTIC EVALUATION
++
+++
ADRENOCORTICAL INSUFFICIENCY (HYPOCORTISOLISM): LABORATORY EVALUATION OF SUSPECTED ADRENOCORTICAL INSUFFICIENCY (HYPOCORTISOLISM)
++
+++
AMENORRHEA OR OLIGOMENORRHEA: DIAGNOSTIC LABORATORY EVALUATION FOR AMENORRHEA OR OLIGOMENORRHEA
++
+++
ANEMIA: GENERAL CONSIDERATIONS AND INITIAL EVALUATION
++
+++
ASCITES: DIAGNOSTIC EVALUATION
++