Which of the following should be collected first for tests including CBC, chemistry panel, lead, and a toxicology screen via capillary puncture?

Choice A reason:
When encountering a patient who appears motionless and cyanotic, the first action should be to assess their level of consciousness. Asking loudly if they are okay can help determine if the patient is responsive or unresponsive. If there is no response, this indicates that the patient may be unconscious and requires further immediate assessment and potential intervention.

Choice B reason:
The head-tilt-chin-lift maneuver is used to open the airway of an unresponsive patient who is not suspected of having a spinal injury. However, this is not the first step. Before performing any maneuvers, it is essential to determine the patient's level of consciousness and whether they are breathing.

Choice C reason:
Administering rescue breaths is part of the process of cardiopulmonary resuscitation (CPR), which is only initiated after confirming that the patient is unresponsive and not breathing normally. This step comes after checking for responsiveness and breathing.

Choice D reason:
Looking, listening, and feeling for breathing movements is part of the assessment to determine if the patient is breathing normally. This is done after establishing unresponsiveness but before initiating CPR. It is a critical step, but it follows after confirming that the patient does not respond to verbal stimuli.

Choice A Reason:
A glucose tolerance test is used to diagnose diabetes by measuring the body's response to glucose over a period of time. It is not used to identify bacteremia, which is the presence of bacteria in the bloodstream.

Choice B Reason:
A peripheral blood smear involves examining a sample of blood under a microscope to look for abnormalities in blood cells. While it can reveal signs of infection, it does not specifically identify bacteremia.

Choice C Reason:
A blood culture is the primary test used to detect bacteremia. It involves taking a sample of blood and incubating it to see if bacteria grow, which would indicate the presence of bacteria in the bloodstream.

Choice D Reason:
Lactic acid levels in the blood are measured to assess the severity of sepsis, a condition that can result from bacteremia. Elevated lactic acid can indicate that tissues are not getting enough oxygen, but the test itself does not identify bacteremia.