You can not overdose from LSD, but you can mess your life up by taking large amounts at once or over a long period of time, but no overdosing.
Having a very bad "trip."
An overdose of both substances is possible. While a PCP overdose could certainly prove fatal, an overdose of LSD is very rarely fatal and would likely cause only an extremely unpleasant and overwhelming altered state with anxiety and panic.
An overdose of LSD substantial enough to cause life-threatening physical symptoms is thousands of times the recreational dose, and therefore is not typically a risk to the average user. However, LSD may certainly cause frightening psychological effects and a risk for dangerous behavior when ingested in excess.
You have no pulse.
Hematuria
Nope, only one person has ever died from LSD, and he was an army test subject that was injected with thousands of doses at once. Nobody has ever accidentally died from an LSD overdose, the oral dose required would be thousands upon thousands of doses.
Signs of iron overdose include severe vomiting, racing heart, bloody diarrhea, stomach cramps, bluish lips and fingernails, pale skin, weakness.
If the person shows no signs of life from a drug overdose, yes you would perform CPR.
There is no recorded death from an overdose or allergic reaction to LSD except a highly skeptical incident in Kentucky where reportedly a man injected 320 mg of LSD intravenously, thinking it was methamphetamine. The LD50 (Lethal Dose) of LSD is 12,000 ug(micrograms) but most "tabs" of blotter acid contain anywhere from 30 to 100 ug and are hardly anywhere near deadly.
Call 911 immediately.
Although an 'overdose' of LSD is generally not regarded as life threatening, the experience can be exceedingly distressing for the affected individual. Symptoms of an 'overdose' include moderate to severe anxiety and panic, racing and incoherent thoughts, vast distortions of perception, and possibly related physical symptoms such as perspiration and rapid heartbeat. Some of the 'overdose' effects are sought by users, and the line between an acceptable dose and overdose is nebulous. An overdose is usually regarded as a dose which produces effects which are overwhelming and more intense than desired. Thus, a dose which is an overdose for one person may be an acceptable dose for another. As previously stated, the overdose is virtually never directly lethal (unless, for example, one has a severe heart problem or similar illness); the danger of the overdose lies in accidents, unpredictable behavior, emotional distress, and potentially subsequent mental health issues, which can be similar to post-traumatic stress disorder.