Which of the following is not considered to be one of the steps of the acute inflammatory response?

A. An inherited disorder from your mother: Inherited disorders are genetic and not caused by medical intervention - not iatrogenic.
B. A combination of specific etiologic disorders: This describes multifactorial disease causation, not specifically caused by healthcare actions.
C. An unwanted effect of a prescription drug: Iatrogenic disease is any adverse condition caused by medical treatment or diagnostic procedures - adverse drug effects are classic examples.
D. Prolonged exposure to toxic chemicals: Environmental/toxic exposures can cause disease but are not necessarily iatrogenic unless caused by medical care.
E. Exposure while lying in a hospital bed: This is vague; hospital-acquired infections can be iatrogenic, but the best single choice describing iatrogenic cause is adverse effect of a prescription drug.

A. the count/percentage of each white blood cell types: A differential provides the relative percentages (and often absolute counts) of WBC types - neutrophils, lymphocytes, monocytes, eosinophils, basophils.
B. the count / percentage of all blood cells: The CBC reports totals for RBCs and platelets too, but the differential specifically breaks down white cell types.
C. neutrophils / erythrocytes/ eosinophils / platelets: Erythrocytes and platelets are not part of the WBC differential.
D. neutrophils / eosinophils / basophils / erythrocytes: Includes erythrocytes (RBCs), which are not part of the WBC differential.